An ideal refrigerator or ideal heat pump is equivalent to

Chapter 22, Problem 20

(choose chapter or problem)

An ideal refrigerator or ideal heat pump is equivalent to a Carnot engine running in reverse. That is, energy |Q c| is taken in from a cold reservoir and energy |Q h | is rejected to a hot reservoir. (a) Show that the work that must be supplied to run the refrigerator or heat pump is W 5 Th 2 Tc Tc 0 Q c 0 (b) Show that the coefficient of performance (COP) of the ideal refrigerator is COP 5 Tc Th 2 Tc

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