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Assertion (A ): T he COP of an air-conditioning plant is lower than that of an ice plant. 
Reason (R): The  tem peratures required in the ice plant are lower than those required for an air-conditioning plant. 
  • a)
    Both A and R are individually true and R is the correct explanation of A  
  • b)
    Both A and R are individually true but R is not the correct explanation of A  
  • c)
    A is true but R is false  
  • d)
    A is false but R is true 
Correct answer is option 'D'. Can you explain this answer?
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Assertion (A ): T he COP of an air-conditioning plant is lower than th...
The COP of an air-conditioning plant is higher than that of an ice plant. 
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Assertion (A ): T he COP of an air-conditioning plant is lower than th...
Assertion (A): The COP of an air-conditioning plant is lower than that of an ice plant.
Reason (R): The temperatures required in the ice plant are lower than those required for an air-conditioning plant.

Explanation:
Definition of COP:
The coefficient of performance (COP) is a measure of the efficiency of a heat pump or refrigeration system. It is defined as the ratio of the desired output to the required input.

Understanding Assertion (A) and Reason (R):
- The assertion states that the COP of an air-conditioning plant is lower than that of an ice plant.
- The reason given for this is that the temperatures required in the ice plant are lower than those required for an air-conditioning plant.

Analysis:
- The COP of a refrigeration or air-conditioning system is given by the formula: COP = Qc / W, where Qc is the cooling capacity and W is the work input.
- In an air-conditioning plant, the purpose is to remove heat from a space and maintain a lower temperature. The required temperature for air-conditioning is typically around 20-25 degrees Celsius.
- In an ice plant, the purpose is to freeze water and produce ice. The required temperature for ice production is typically below 0 degrees Celsius, usually around -5 to -10 degrees Celsius.
- The COP of a refrigeration system increases as the temperature difference between the evaporator and condenser decreases.
- Since the temperature required in an ice plant is lower than that required for an air-conditioning plant, the temperature difference in an ice plant is smaller, resulting in a higher COP.

Conclusion:
- The assertion is false because the COP of an ice plant is higher than that of an air-conditioning plant, not lower.
- The reason given is true, as the temperatures required in an ice plant are indeed lower than those required for an air-conditioning plant.
- Therefore, option (d) is the correct answer: A is false but R is true.
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Assertion (A ): T he COP of an air-conditioning plant is lower than that of an ice plant.Reason (R): The tem peratures required in the ice plant are lower than those required for an air-conditioning plant.a)Both A and R are individually true and R is the correct explanation of A b)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is false d)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Assertion (A ): T he COP of an air-conditioning plant is lower than that of an ice plant.Reason (R): The tem peratures required in the ice plant are lower than those required for an air-conditioning plant.a)Both A and R are individually true and R is the correct explanation of A b)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is false d)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A ): T he COP of an air-conditioning plant is lower than that of an ice plant.Reason (R): The tem peratures required in the ice plant are lower than those required for an air-conditioning plant.a)Both A and R are individually true and R is the correct explanation of A b)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is false d)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?.
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