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Which of the following devices complies with the Clausius statement of the second law of thermodynamics?
- a)Closed-cycle gas turbine
- b)Internal combustion engine
- c)Steam power plant
- d)Domestic refrigerator
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which of the following devices complies with the Clausius statement of...
Clausius statement: No device can operate on a cycle and produce effect that is solely the heat transfer from a lower-temperature body to a higher-temperature body.
Clausius statement is related to refrigerator and heat pump whereas gas turbines works on Brayton Cycle.
Most Upvoted Answer
Which of the following devices complies with the Clausius statement of...
Domestic Refrigerator
Domestic refrigerators comply with the Clausius statement of the second law of thermodynamics.
- Clausius Statement: Heat cannot flow from a colder body to a hotter body without the input of work.
- Explanation: A refrigerator operates by removing heat from the inside (colder body) and transferring it to the outside (hotter body) using work input. This process is in accordance with the Clausius statement as the heat is moved from a colder region to a hotter region with the help of a compressor and refrigerant.
- Working Principle: The refrigerant in the evaporator absorbs heat from the inside of the refrigerator, causing it to vaporize and cool the interior. The compressor then compresses the vaporized refrigerant, raising its temperature and pressure. The hot refrigerant releases heat to the surroundings through the condenser coils, condenses back into a liquid, and the cycle repeats.
- Efficiency: The efficiency of a refrigerator is determined by its coefficient of performance (COP), which is the ratio of heat extracted to the work input. A higher COP indicates better efficiency in transferring heat from a colder region to a hotter region.
- Application: Domestic refrigerators, air conditioners, and heat pumps all utilize the principles of the second law of thermodynamics to transfer heat against the natural flow of heat from hot to cold regions.
In conclusion, domestic refrigerators are devices that comply with the Clausius statement of the second law of thermodynamics by efficiently transferring heat from a colder body to a hotter body with the input of work.
Domestic refrigerators comply with the Clausius statement of the second law of thermodynamics.
- Clausius Statement: Heat cannot flow from a colder body to a hotter body without the input of work.
- Explanation: A refrigerator operates by removing heat from the inside (colder body) and transferring it to the outside (hotter body) using work input. This process is in accordance with the Clausius statement as the heat is moved from a colder region to a hotter region with the help of a compressor and refrigerant.
- Working Principle: The refrigerant in the evaporator absorbs heat from the inside of the refrigerator, causing it to vaporize and cool the interior. The compressor then compresses the vaporized refrigerant, raising its temperature and pressure. The hot refrigerant releases heat to the surroundings through the condenser coils, condenses back into a liquid, and the cycle repeats.
- Efficiency: The efficiency of a refrigerator is determined by its coefficient of performance (COP), which is the ratio of heat extracted to the work input. A higher COP indicates better efficiency in transferring heat from a colder region to a hotter region.
- Application: Domestic refrigerators, air conditioners, and heat pumps all utilize the principles of the second law of thermodynamics to transfer heat against the natural flow of heat from hot to cold regions.
In conclusion, domestic refrigerators are devices that comply with the Clausius statement of the second law of thermodynamics by efficiently transferring heat from a colder body to a hotter body with the input of work.
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Which of the following devices complies with the Clausius statement of the second law of thermodynamics?a)Closed-cycle gas turbineb)Internal combustion enginec)Steam power plantd)Domestic refrigeratorCorrect answer is option 'D'. Can you explain this answer?
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