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Refrigeration cycle energy balance: compare heat rejected and heat absorbed In a vapor-compression refrigerating machine, how does the condenser heat rejection compare to the evaporator heat absorption? Choose the correct relation.

Difficulty: Easy

Correct Answer: Heat rejected is greater than heat absorbed

Explanation:

Concept/Approach
First law over the cycle gives: QH = QL + Win, where QL is heat absorbed in the evaporator, Win is compressor work, and QH is heat rejected in the condenser.


Implication
Since Win > 0 for a working refrigerator, QH > QL.


Final Answer
Heat rejected is greater than heat absorbed

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