what is the function of heat engine
1. what is the function of heat engine
a heat engine is a system that converts heat or thermal energy
2. what is the function of a heat engine ?
Answer:
Hot objects, even gases, have thermal energy that can be turned into something useful. Heat engines move energy from a hot place to a cold place and divert some of that energy into mechanical energy. Heat engines require a difference in temperature to function
Explanation:
hope it's help
Answer:
A heat engine is a system that converts heat to mechanical energy and can be used to do mechanical work.
3. What is the function of the heat engine?
Answer:
In thermodynamics and engineering, a heat engine is a system that converts heat or thermal energy—and chemical energy—to mechanical energy, which can then be used to do mechanical work.
4. What is the function of a heat engine?
In thermodynamics and engineering, a heat engine is a system that converts heat or thermal energy—and chemical energy—to mechanical energy, which can then be used to do mechanical work.
5. V. ASSESSMENT (Time Frame: Day 5)(Learning Activity Sheets for EnrichmentRemediation, or Assessment to be given on Weeks 3 and 6)Multiple Choice: Write only the letter of the correct answer.1. Which is the correct sequence of the four-stroke cycle?A. Intake, Compression, Power and Exhaust StrokeB. Power, Intake, Exhaust, and Compression StrokeC. Compression, Power, Intake, and Exhaust StrokeD. Power, Compression, Intake and Exhaust Stroke2. What is the function of heat engine?A. It converts chemical energy to mechanical energy.B. It converts thermal energy to mechanical energy.C. It converts mechanical energy to chemical energy.D. It converts thermal energy to chemical energy.3. Why is heat engine not 100% efficient?A. Because all mixture of gases is converted into work.B. Because engine needs to be cooled down.C. All the gases are used up by the engine.D. Some of the gases is taken up in the piston.4. What causes thermal energy?A. exhaust of different vehicles.B. exhaust from different industrial engines.C. degradation of water.D. All of them5. What is the function of the spark plug?A. The spark plug ignites the mixture making it temperature high. C. The spark plug pushes the piston up.B. The spark plug pushes the piston downD. The spark plug pushes the gases out of the cylinder.
Answer:
1. A
2. A
3. A
4. D
5. A
Explanation:
1. A
An internal-combustion engine goes through four strokes: intake, compression, combustion (power), and exhaust.
2. A
The function of an engine is to convert chemical energy into mechanical energy (work) via a process known as a heat cycle.
3. A
A heat engine is considered to be 100% efficient if only all the heat is converted into useful work or mechanical energy.
4. D
Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other.
5. A
Spark plug, also called Sparking Plug, device that fits into the cylinder head of an internal-combustion engine and carries two electrodes separated by an air gap, across which current from a high-tension IGNITION system discharges, to form a spark for IGNITING the air–fuel MIXTURE. The electrodes must be able to resist HIGH TEMPERATURES, and the insulator separating them must withstand high temperatures and also an electric stress up to several thousand volts.
6. what is the function of a heat engine if the human body human? pa help po bukas napo pasahab namin thank u
Answer:
a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature
Explanation:
PABRAINLIEST NAMAN PO -,-
7. Guide Questions ( Analysis )1. What happens to the gas if it is heated inside the. engine's cylinder?2. What happens to the piston and the gases during compression stroke?3. What is the function if the spark plug? What is its effect to the mixture's temperature?4. Describe the piston and the gases during power stroke?Help plss:(
Answer:
1.During the intake stroke, the fuel and air mixture is drawn into the cylinder with the exhaust valve closed. Then the air and fuel mixture is compressed in a compression stroke. ... During the expansion or power stroke, the high-pressure combustion gases expand moving the piston down and delivering the power.
2.Compression Stroke
During the compression, no heat is transferred to the fuel/air mixture. As the volume is decreased because of the piston's motion, the pressure in the gas is increased, as described by the laws of thermodynamics.
3.The main purpose of the spark plug is to ignite the air and fuel mixture inside a combustion chamber. To produce fire or flame, there has to be oxygen, fuel and ignition. The spark plug then causes the mixture to produce flame thus increasing the mixture temperature.
4.By definition, power stroke is the stage in an internal combustion engine cycle wherein the expansion of gases causes the piston to move outwards. The hot expanding gases causes the piston to move away from the cylinder head.
#AnswerTrees#AlberEinstein8. what is the function of heat engine
It is an engine that produces power from heat.
9. Guide Queswons.Q17. What happens to the gas if it is heated inside the engine's cylinder?Q 18. What happens to the piston and the gases during compression stroke?Q 19. What is the function of the spark plug? What is its effect to themixture's temperature?Q 20. Describe the piston and the gases during power strokeQ 21. In exhaust stroke, what happens to the piston and the mixture of gases?Q 22. What do you think is the effect of this exhaust gas to the environment?Q 23. Can we consider heat engine 100% efficient? Why? Why not?Q 24. As a student, how can you help minimize the effects of thermal pollution?
Answer:
Q17.What happens to the gas if it is heated inside the engine's cylinder?When the gases are heated inside the engines cylinder, it results into high temperature and pressure due to vibration cause by movement of gas particles. Increase in tempearture and pressure produces internal combustion that direct force to component of the engines including pistons, turbine blades and rotor.
Q18.What happens to the piston and the gases during the compression stroke?Compression Stroke
During the compression, no heat is transferred to the fuel/air mixture. As the volume is decreased because of the piston's motion, the pressure in the gas is increased, as described by the laws of thermodynamics.
Q19.What is the function of the spark plug?Your spark plugs are what supply the spark that ignites the air/fuel mixture, creating the explosion which makes your engine produce power. These small but simple plugs create an arc of electricity across two leads which are not touching, but close enough together that electricity can jump the gap between them.
Q20. Describe the piston and the gases during power strokeThe high pressure of the gases acting on the face of the piston cause the piston to move to the left which initiates the power stroke. ... During the power stroke, the volume occupied by the gases is increased because of the piston motion and no heat is transferred to the fuel/air mixture.
Q21. In exhaust stroke, what happens to the piston and the mixture of gases ?During the exhaust stroke, the mixture of gases that were ignited during the compression/power/expansion stroke is forced out from the cylinder through the exhaust valve. The piston, meanwhile, rises to force the gases out.
Q22.What do you think is the effect of this exhaust gas to the environment?Air pollutants are responsible for a number of adverse environmental effects, such as photochemical smog, acid rain, death of forests, or reduced atmospheric visibility. Emissions of greenhouse gases from combustion of fossil fuels are associated with the global warming of Earth's climate.
Q23. Can we consider heat engine 100%efficient? Why or why not?No. 100 percent efficient engine is not possible. In reality, heat engines are inefficient systems. ... Another is that not all thermal energy is used by the system, some of it exits the engine as heat, which is not used to produce the force or output that is needed.
Q 24. As a student, how can you help minimize the effects of thermal pollution?Thermal pollution is the degradation of water quality due to changes in water temperature. A change in water quality affects oxygen supply and the ecosystem that is dependent on bodies of water. There are different factors why water temperature changes and one of these is due to the heat released by power plants.
As a student, there are only limited things that I can do to minimize the effects of thermal pollution:
Plant trees. By planting trees, it helps minimize the degradation of water temperature by blocking the sun's heat and absorbing carbon emissions. By absorbing carbon emissions, more oxygen is provided for the water.Reduce electrical consumption. Power plants are the major contributor of thermal pollution and by consuming less power, less power is also managed by the power plants. With less power, less water will be used as a coolant wherein it would lessen the heated water being sent back to where it came from.In the end, there are only a handful of ways that I can do as a student to help solve thermal pollution. The best way is to educate other people of the effects of thermal pollution in order to have a collective effort in providing a solution to the problem. Take note that what we do will always have a domino effect on our environment therefore, we should do things accordingly.
10. Post Assessment:1. Into what kind of energy do turbines change heat energy?A. radiant B. chemical C. electrical D. mechanical2. In a gasoline engine, on what stroke occurs the ignition of spark plug to the fuel-air mixture?A. Intake B. Power C. Exhaust D. Compression3. What is the correct sequence of four cycles-stroke of gasoline engine?i. Intake ii. Power iii. Exhaust iv. Compression A. iii, i, ii, iv C. ii, ii, iv, i B. i, iv, ii, iii D. i, iii, iv, ii4. In which of the following shows a conversion of mechanical energy to heat?A. rubbing of hands C. running carB. flying airplane D. spinning turbine5.How is a car’s engine classified?A. external combustion engine C. heat engineB. internal combustion engine D. both A and C6.What constitute a heat engine?A. gas material, piston, and chamberB. liquid material, piston, and chamberC. solid material, piston, and chamberD. fluid material, piston, and chamber7.What causes thermal pollution?A. exhaust of different vehicles C. degradation of waterB. exhaust from different industrial engines D. all of them8. Why is heat engine NOT 100% efficient?A. Because all mixture of gases is converted into work.B. Because engine needs to be cooled down.C. All the gases are used up by the engine.D. Some of the gases are used up in the piston.9. What is the function of heat engine?A. It converts chemical energy to mechanical energy.B. It converts thermal energy to mechanical energy.C. It converts mechanical energy to chemical energy.D. It converts thermal energy into chemical energy.10. What is the efficiency of a gasoline engine that receives 194.5 J of energy from combustion engine and loses 143.3 J by heat to the exhaust during one cycle?A. 24% B. 42% C. 26% D. 62%
Answer:
1.a
2.c
3.b
4.a
5.d
6.b
7.b
8.d
9.c
10.a
11. What is the function of a heat engine cycle? A. to produce work continuously at the expense of output to the system B. to produce work continuously at the expense of heat input to the system C. to heat input continuously at the expense of heat input to the system D. to heat input continuously at the expense to produce work to the system
[tex] \bold{Questions:}[/tex]
What is the function of a heat engine cycle?
[tex] \bold{Choices}[/tex]A. To produce work continuously at the expense of output to the system.
B. To produce work continuously at the expense of heat input to the system.
[tex] \bold \colorbox{gold}{ \colorbox{silver}{C. To heat input continuosly at the expense of heat input to the system.}}[/tex]
D. To heat input continuously at the expense to produce work to the system.
[tex] \bold{Answer:}[/tex]C. To heat input continuosly at the expense oh heat input to the system.[tex] \bold{Explanation:}[/tex]In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.12. 11. What form of energy is transferred between objects of different temperatures?A. HeatC. SoundD. Wave12. What is the function of a heat engine?A. It converts thermal energy into chemical energy.B. It converts thermal energy into mechanical energy.C. It converts mechanical energy into chemical energy.D. It converts chemical energy into mechanical energy.13. Why is the heat engine not 100% efficient?A. Because all mixtures of gases are converted into work.B. Because an engine needs to be cooled down.C. All of the gases are used up by the engine.D. Some of the gases are taken up in the piston.14. What causes thermal pollution?A. Exhaust of different vehicles.B. Exhaust from different industrial engines.C. Degradation of water.D. All of them15. How can an air conditioning unit function as a heater during cold days and as a coolerduring hot days?1. It cools the inside of the house and heats the outside.2. It takes heat from the air outside to warm the inside.A. 1 onlyD. None of themB. 2 onlyC. Both 1 and 2II. Modified True or False. Study each statement. Write TRUE if the underlined word/s arecorrect. If your answer is False, change the underline word/s to make the statement correct.._16. Heat engine is any device that converts thermal energy into mechanical work.17. In every heat engine, all of the heat can be converted into work.18. Mechanical work takes place in the piston of a gasoline engine.19. There is no ideal heat engine, making some heat escapes in the environment,20.Thermal pollution is brought about by the accumulated exhaustion of heatfrom diesel, gasoline and industrial engine.
❄️Answer:❄️
11.)A. Heat
12.)C. It converts mechanical energy into chemical energy.
13.)C. All of the gases are used up by the engine.
14.)C. Degradation of water.
15.)C. Both 1 and 2
16.)false
17.)true
18.)true
19.)true
20.)true
❄️Explanation:❄️
11.)Heat is energy transferred solely due to a temperature difference. Any energy unit can be used for heat transfer, and the most common are kilocalorie (kcal) and joule (J). Kilocalorie is defined to be the energy needed to change the temperature of 1.00 kg of water between 14.5ºC and 15.5ºC.
12.)In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.
13.)A heat engine is considered to be 100% efficient if only all the heat is converted into useful work or mechanical energy. Since heat engines cannot convert all the heat energy into mechanical energy, their efficiency can never be 100%.
14.)Simply put, thermal pollution comes from hot water or cold water being dumped into a body of water. Bodies of water naturally tend to dissipate the heat gained from warm currents, underwater hot springs, and from the sun.
15.)The air then flows over a heating element (similar to the one in a fan heater). On a cold day, this part of the unit may be turned right up so the HVAC works as a heater. ... As it does so, it picks up heat from the air blowing past the pipes and evaporates, turning from a cool liquid into a hotter gas.
16.)Heat Engines are any device that converts thermal energy into mechanical energy/work. Chemical energy in fuel transformed into thermal energy then some of the thermal energy transformed into mechanical energy. This process explains how an internal combustion engine works.
17.)According to the second law of thermodynamics, however, it cannot convert *all* of the heat energy supplied to it into work. Basic heat engine: hot reservoir, cold reservoir, and a machine to convert heat energy into work. This is a simplified diagram of a heat engine, along with its thermal cycle.
18.) (the end of the compression stroke) the compressed air-fuel mixture is ignited by a spark plug (in a gasoline engine) or by heat generated by high compression (diesel engines), forcefully returning the piston to B.D.C. This stroke produces mechanical work from the engine to turn the crankshaft.
19.)The great advantage of using a heat pump to keep your home warm, rather than just burning fuel, is that a heat pump supplies Qh = Qc + W. Heat transfer is from the outside air, even at a temperature below freezing, to the indoor space. You only pay for W, and you get an additional heat transfer of Qc from the outside at no cost; in many cases, at least twice as much energy is transferred to the heated space as is used to run the heat pump. When you burn fuel to keep warm, you pay for all of it. The disadvantage is that the work input (required by the second law of thermodynamics) is sometimes more expensive than simply burning fuel, especially if the work is done by electrical energy.
20.)The statement that thermal pollution is brought about by the accumulated exhaustion of heat from diesel, gasoline and industrial engines is indeed correct. ... Thermal pollution is everywhere that have so many negative effects to living things and to the environment.
•I HOPE HELP YOU TO YOUR QUESTION'S.
•BRAINLIEST ME IF I'M CORRECT MY ANSWER.
•GOOD LUCK TO YOUR TEST.(✿^‿^)
(｡•̀ᴗ-)✧
13. What I KnowDtrections: Choose the letter of the best answer and write it in your notebook or ona separate sheet of paper.1. What is the function of a heat engine?A. It converts chemical energy to mechanical energy.B. It converts thermal energy to mechanical energyc. It converts mechanical energy to chemical energyD. It converts thermal energy into chemical energy
Answer:
A.
Explanation:
In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.
14. 38 The intemel energy of a system increases during some interval. Which ofthe following statements concerning this situation must be trueA.The herease in intemat energy indicates that work was done to theB. The herecse in the Internal energy indicates that no heat was addedto the systemC.The increase in the Intemal energy indicates was workdone by thesystemD. The increase in interant energy indicates that heat was removed fromthe system34 What would result if heat is added in an enclosed system's energyA. Intemal energy increases C. Intemal energy remain the sameB. Intemol energy decreses D. intemal energy will be undetected35. Can you explain what is happening inside a internal combustion engineA heat is converted to sound cheat is converted to useful workB heat is not converted at all D. heat creates different types of energy36. What would result if heat is converted effeciently by enginesA. people can save more on gasoline.C. can cause overheatingB. car will travel lessD. nothing will happen37. Which is expected in the set up if the girl will continue pushing the pedal?A. There will be an increase in the amount of water in the containerB. The pedals will measure the amount of workdone by the girlC. There will be an increase in the temperature which measures anincrease of the intemal energyD. The pedal absorb the heat energy of the water which is measuredby the thermometer38. Which of the following correctly differentiates heat and work?1. If workdone is done on something it will generate heatII. Workdone by person is converted to heat by means of frictionII. Work can be converted to heat and heat can be converted to workIV. Work is energy transfer that does not carry entropy while heat is anyenergy transfer that caries entropyA. I and IIC. I. II. III, AND IVB. LlandD. land ill only39. What is the function of a heat engineA. It converts chemical energy to mechanical energyB. It converts mechanical energy to chemical energyC. It converts thermal energy to mechanical energyD. It converts thermal energy into chemical energy
Answer:
33. D
34.A
35.A
36.A
37.C
38.C
39.B
Explanation:
sana makatulong
15. what is the function of heat engine brainly
Answer:
di ko rin po alam eh
Explanation:
sorry ah
Answer:
In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.
Explanation:
stay safe and healthy
16. What is the function of a heat engine?a. It converts chemical energy to mechanical energy.b. It converts thermal energy to mechanical energy.c. It converts mechanical energy to chemical energy.d. It converts thermal energy into chemical energy.
'thermal energy-and chemical energy-to mechanical energy' so cguro po pwedeng a or b :3
17. 38. What is the function of a heat engine?
Answer:
In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.I HOPE IT HELPS ❤️❤️❤️#CARRY ON LEARNING ❤️❤️❤️GODBLESS ❤️❤️❤️18. Multiple Choice: Write only the letter of the correct answer 1. Which is the correct sequence of the four stroke cyclee A. Intake, Compression, Power and Exhaust Stroke B. Power , Intake, Exhaust , and Compression Stroke Compression, Power, Intake, and Exhaust Stroke D. Power, Compression, Intake and Exhaust Stroke 2. What is the function of heat engine A. it converts chemical energy to mechanical energy. B. It converts thermal energy to mechanical energy. C. It converts mechanical energy to chemical energy. D. converts thermal energy to chemical energy. 3. Why is heat engine not 100 % efficient A. cause mixture of gases is converted into work B. Because engine needs to be cooled down . C. All of the gases are used up by the engine. D. Some of the gases is taken up in the piston 4. What causes thermal energy A. exhaust of different vehicles . B. exhaust from different industrial engines. degradation of water . D. all of them 5. What is the function of the spark plug A. The spark plug ignites the mixture making it temperature high . B. The spark plug pushes the piston down C. The spark plug pushes the piston up . D. The spark plug pushes the gases out of the cylinder
Answer:
1.A
2.A
3.A
4.D
5.A
Explanation:
diko po alam kung tama lahat pero sana makatulong
19. V. ASSESSMENT (Time Frame: Day 5)(Learning Activity Sheets for Enrichment, Remediation, or Assessment to be given on Weeks 3 and 6)Multiple Choice: Write only the leiler of the correct answer.1. Which is the correct sequence of the four-stroke cycle?A. Intake, Compression, Power and Exhaust StrokeB. Power, Intake, Exhaust, and Compression StrokeC. Compression, Power, Intake and Exhaust StrokeD. Power, Compression, Intake and Exhaust Stroke2. What is the function of heat engine?A. It converts chemical energy to mechanical energy.8. i converts thermal energy to mechanical energy.C.It converts mechanical energy to chemical energy.D. It converts thermal energy to chemical energy.3. Why is heat engine not 100% efficient?A. Because all mixture of gases is converted into work.B. Because engine needs to be cooled down,C. All the gases are used up by the engine.D. Some of the gases is taken up in the piston.4. What causes thermal energy?A. exhausiai pirrereni vehicles.B. exhaust from different industrial engines,6. degradation of waterD. All of them5. What is the function of the spark plug?A. The spark plug ignites the mixture making it temperature high. C. The spark plug pushes the piston up.B. The spark plug pushes the piston downD. The spark plug pushes the gases out of the cylinder.
Answer:
1.A
2.A
3.A
4. D
5.A
Explanation:
Sana makatulong
20. 1. What form of energy is transferred between objects of different temperatures? B. Light D. Wave A. Heat C. Sound 2. What is the function of a heat engine? A. It converts thermal energy into chemical energy. B. It converts thermal energy into mechanical energy. C. It converts mechanical energy into chemical energy. D. It converts chemical energy into mechanical energy. 3. Why is the heat engine not 100% efficient? A. Because all mixtures of gases are converted into work. B. Because an engine needs to be cooled down. C. All of the gases are used up by the engine. D. Some of the gases are taken up in the piston. 4. What causes thermal pollution? A. Exhaust of different vehicles. B. Exhaust from different industrial engines. C. Degradation of water. D. All of them 5. How can an air conditioning unit function as a heater during cold days and as a cooler during hot days? 1. It cools the inside of the house and heats the outside. 2. It takes heat from the air outside to warm the inside. C. Both 1 and 2 B. 2 only D. None of them A. I only Report wrong answer
Answer:
1.A
2.D
3.C
4.A
5.B
Explanation:
Pa brainliest po :)
21. V. ASSESSMENT (Time Frame: Day 5)(Learning Activity Sheets for Enrichment, Remediation, or Assessment to be given on Weeks 3 and 6)Multiple Choice: Write only the letter of the correct answer.1. Which is the correct sequence of the four-stroke cycle? A. Intake, Compression, Power and Exhaust Stroke C. Compression, Power, Intake, and Exhaust Stroke B. Power, Intake, Exhaust, and Compression Stroke D. Power, Compression, Intake and Exhaust Stroke2. What is the function of heat engine? A. It converts chemical energy to mechanical energy. C. It converts mechanical energy to chemical energy. B. It converts thermal energy to mechanical energy. D. It converts thermal energy to chemical energy.3. Why is heat engine not 100% efficient? A. Because all mixture of gases is converted into work. C. All the gases are used up by the engine. B. Because engine needs to be cooled down. D. Some of the gases is taken up in the piston.4. What causes thermal energy?A. exhaust of different vehicles.C. degradation of water.B. exhaust from different industrial engines.D. All of them5. What is the function of the spark plug? A. The spark plug ignites the mixture making it temperature high. C. The spark plug pushes the piston up. B. The spark plug pushes the piston down D. The spark plug pushes the gases out of the cylinder
Answer:
1. A
2. A
3.C
4.B
5.C
Explanation:
Stock knowledge Lang po. Hope it helps
22. 1. Which is the correct sequence of the four-stroke cycle?A. Intake, Compression, Power and Exhaust StrokeB. Power Intake, Exhaust, and Compression Stroke? What is the function of heat engine?C. Compression, Power, Intake, and Exhaust StrokeD. Power. Compression. Intake and Exhaust Stroke
Answer:
A. Intake, Compression, Power and Exhaust Stroke.Hope it helps.
23. Guide Questions1. What happens to the gas if it is heated inside the engine's cylinder?2. What happens to the piston and the gases during the compression stroke?3. What is the function of the spark plug?4. Describe the piston and the gases during power stroke5. In exhaust stroke, what happens to the piston and the mixture of gases ?6. What do you think is the effect of this exhaust gas to the environment?7. Can we consider heat engine 100%efficient? Why or why not?
Answer:
1. What happens to the gas if it is heated inside the engine's cylinder?When the gases are heated inside the engines cylinder, it results into high temperature and pressure due to vibration cause by movement of gas particles. Increase in tempearture and pressure produces internal combustion that direct force to component of the engines including pistons, turbine blades and rotor.
2. What happens to the piston and the gases during the compression stroke?Compression Stroke
During the compression, no heat is transferred to the fuel/air mixture. As the volume is decreased because of the piston's motion, the pressure in the gas is increased, as described by the laws of thermodynamics.
3. What is the function of the spark plug?Your spark plugs are what supply the spark that ignites the air/fuel mixture, creating the explosion which makes your engine produce power. These small but simple plugs create an arc of electricity across two leads which are not touching, but close enough together that electricity can jump the gap between them.
4. Describe the piston and the gases during power strokeThe high pressure of the gases acting on the face of the piston cause the piston to move to the left which initiates the power stroke. ... During the power stroke, the volume occupied by the gases is increased because of the piston motion and no heat is transferred to the fuel/air mixture.
5. In exhaust stroke, what happens to the piston and the mixture of gases ?During the exhaust stroke, the mixture of gases that were ignited during the compression/power/expansion stroke is forced out from the cylinder through the exhaust valve. The piston, meanwhile, rises to force the gases out.
6.What do you think is the effect of this exhaust gas to the environment?Air pollutants are responsible for a number of adverse environmental effects, such as photochemical smog, acid rain, death of forests, or reduced atmospheric visibility. Emissions of greenhouse gases from combustion of fossil fuels are associated with the global warming of Earth's climate.
7. Can we consider heat engine 100%efficient? Why or why not?No. 100 percent efficient engine is not possible. In reality, heat engines are inefficient systems. ... Another is that not all thermal energy is used by the system, some of it exits the engine as heat, which is not used to produce the force or output that is needed..
24. What is the function of a heat engine? a. It converts chemical energy to mechanical energy. b. It converts thermal energy to mechanical energy. c. It converts mechanical energy to chemical energy. d. It converts thermal energy into chemical energy.
Answer:
It converts thermal energy into chemical energy.
Explanation:
In thermodynamics and engineering, a heat engine is a system that converts heat or thermal energy—and chemical energy—to mechanical energy, which can then be used to do mechanical work.
25. "What is the function of a heat engine? a. It converts chemical energy to mechanical energy. b. It converts thermal energy to mechanical energy. c. It converts mechanical energy to chemical energy. d. It converts thermal energy into chemical energy."
Answer:
What does a heat engine do?Heat engines convert thermal energy into mechanical energy, so the answer is the letter (b).
Explanation:
Heat engines generally work by using a rotating shaft that uses excess heat from a source such as a furnace in the old days and converting a bit of that heat into movement or work, the same process is in use today even with solar panels as a heat source.
Being dependent on cycles, heat engines need some sort of fluid (working fluid) to continue functioning.
It all starts with a heat source, where the heat generated will be absorbed by the fluid, converting itself into steam using a type of boiler. The expanded steam turns the shaft which is almost always a turbine of some sort. The spinning shaft operates the engine and work is created.
To complete the cycle mentioned earlier, excess heat (steam) that was not converted to work goes into the condenser which turns it back into fluid. This fluid is then pumped back into the boiler and reused.
Click on the links for more information:
Thermal energy, what is it? https://brainly.ph/question/2120203
What are the uses of heat energy? https://brainly.ph/question/972413
Describe kinetic energy https://brainly.ph/question/1613417
9.22.4.3
26. what is the function of a heat engine
Answer:
In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.
Explanation:
Correct me if I'm wrong.
27. Guide Questions ( Analysis )1. What happens to the gas if it is heated inside the. engine's cylinder?2. What happens to the piston and the gases during compression stroke?3. What is the function if the spark plug? What is its effect to the mixture's temperature?4. Describe the piston and the gases during power stroke?Help plss:(
ANSWER
1.When the gases are heated inside the engines cylinder, it results into high temperature and pressure due to vibration cause by movement of gas particles. Increase in tempearture and pressure produces internal combustion that direct force to component of the engines including pistons, turbine blades and rotor.
2.When compressing a gas using a cylinder and a piston, the piston is being pushed up and down. As the piston goes down, the gas inside the cylinder is being compressed; raising its temperature and decreasing its volume. ... The compression stroke is being done in 4-stroke engine.
3.The main purpose of the spark plug is to ignite the air and fuel mixture inside a combustion chamber. To produce fire or flame, there has to be oxygen, fuel and ignition. The spark plug then causes the mixture to produce flame thus increasing the mixture temperature.
4.By definition, power stroke is the stage in an internal combustion engine cycle wherein the expansion of gases causes the piston to move outwards. The hot expanding gases causes the piston to move away from the cylinder head. The piston movement then results to further movement of the connecting rod then applying torque to the crankshaft. The torque applied results to.crankshaft rotation. Furthermore, the amount of torque produced is depemdent upon the size of the piston, the pressure on the piston caused by the gases, and the throw of the engine.
-SORRY DI KO MAPA IKSI
-BRAINIEST AND HEART PLS
28. WOcooler hot days?1.eforenat the5. How does the temperature of the water from the deep well move upward?a. It occurs naturallyb. It uses a water heat pumpIt is a spontaneous processält flows from higher temperatureto cooler temperature.6. How can air conditioning unit functions as heater during cold days andIt cools the inside of the house and heats the outsideII.It takes heat from the air outside to warm the inside.a. I onlyb. ll onlyc. I and II onlyd. None of the above.7. What is the function of a heat engine?a. It converts chemical energy to mechanical energy.b. It converts thermal energy to mechanical energy.c. It converts mechanical energy to chemical energy.d. It converts thermal energy into chemical energy.8. Why is heat engine not 100% efficient?Because all the mixtures of gases are converted into work,b. Because the engine needs to be cooled down.C. All of the gases are used up by the engine.d. Some of the gases are taken up by the piston.9. What causes thermal pollution?a. Exhaust of different vehiclesb. Exhaust from different industrial enginesC. Degradation of waterd. All of them10. What is the correct sequence of four cycle-stroke of gasoline engine?i. Intakelii. Exhaustii. Poweriv. Compressiona. i, ii, ii, ivc. ii, iii, iv, ib. i, iv, ii, ind. i, iii, iv, 1et ofa.5s?ishend outthe
Answer:
1. B
2.A
3.A
4.C
5.B
Explanation:
HOPE IT HELPS.
29. What is the use or function of a heat engine?
Answer:
In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature
Explanation:
sana po makatulong
Answer:
Internal combustion engines are the most common form of heat engines, as they are used in vehicles, boats, ships, airplanes, and trains. They are named as such because the fuel is ignited in order to do work inside the engine. The same fuel and air mixture is then emitted as exhaust. In thermodynamics and engineering, a heat engine is a system that converts heat to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.
30. Guide Questions:1. Describe the piston and the gases during power stroke.2. What happens to the piston and the gases during compression stroke?3. What is the function of the spark plug? What is its effect to the mixture's temperature?4. In exhaust stroke, what happens to the piston and the mixture of gases?5. What do you think is the effect of this exhaust gas to the environment?6. Can we consider heat engine 100% efficient? Why? Why not?
Answer:
1. The engine consists of a fixed cylinder and a moving piston. The expanding combustion gases push the piston, which in turn rotates the crankshaft. ... After the piston compresses the fuel-air mixture, the spark ignites it, causing combustion. The expansion of the combustion gases pushes the piston during the power stroke
2.When compressing a gas using a cylinder and a piston, the piston is being pushed up and down. As the piston goes down, the gas inside the cylinder is being compressed; raising its temperature and decreasing its volume. ... These strokes includes the intake, compression, power, and exhaust
3.The main purpose of the spark plug is to ignite the air and fuel mixture inside a combustion chamber. To produce fire or flame, there has to be oxygen, fuel and ignition. The spark plug then causes the mixture to produce flame thus increasing the mixture temperature.
4. During the exhaust stroke, the mixture of gases that were ignited during the compression/power/expansion stroke is forced out from the cylinder through the exhaust valve. The piston, meanwhile, rises to force the gases out.
5. It is produced from the combustion of gasoline, natural gas, fuel oil, diesel oil, petrol, or coal. ... Here are the effects of exhaust gas in the environment: Acid rain. Global warming.
6. No. 100 percent efficient engine is not possible. In reality, heat engines are inefficient systems. ... Another is that not all thermal energy is used by the system, some of it exits the engine as heat, which is not used to produce the force or output that is needed.
Explanation:
