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For a given temperature T1, as the difference between T1 and T2 increases, the COP of a carnot heat pump ___________

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For a given temperature T1, as the difference between T1 and T2 increases, the COP of a carnot heat pump ___________

(a) increases

(b) decreases

(c) first increases, then decreases

(d) none of the mentioned

I got this question in final exam.

My question is from Carnot Cycle in division Air Standard Cycles and their Analysis of IC Engine

1 Answer

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Best answer
Right answer is (b) decreases

Easy explanation: COP(heat pump) = T1/(T1 – T2)

As the value of T1 – T2 increases, value of COP decreases.

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