P21_037 - 37 The coecient of performance for a refrigerator...

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37. The coefficient of performance for a refrigerator is given by K = | Q L | / | W | ,wh e r e Q L is the energy absorbed from the cold reservoir as heat and W is the work done during the refrigeration cycle, a negative value. The Frst law of thermodynamics yields Q H + Q L W = 0 for an integer number of cycles. Here
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