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A Carnot refrigerator operates between 250ºK and 300ºK. Calculate its coefficient of performance.

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A Carnot refrigerator operates between 250ºK and 300ºK. Calculate its coefficient of performance.

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Given : TC = 250 K, TH = 300 K
K = \(\frac{T_C}{T_H-T_C}=\frac{250}{300-250}=\frac{250}{50}\)  = 5
this is the coefficient of performance of the refrigerator.

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