# Question

There is a Carnot coefficient of performance (COPC) for an ideal, or Carnot, refrigerator.

(a) Show that this quantity is given by

(b) What does this tell you about adjusting the temperatures for the maximum COP of a refrigerator? (Can you guess the equation for the COPC for a heat pump?)

(a) Show that this quantity is given by

(b) What does this tell you about adjusting the temperatures for the maximum COP of a refrigerator? (Can you guess the equation for the COPC for a heat pump?)

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