1.

A heat pump absorbs 10 kW of heat from outside environment at 250K while absorbing 15 kW of work. It delivers the heat to a room that must be kept warm at 300 K. The Coefficient of Performance (COP) of the heat pump is____

A. 1.57
B. 1.69
C. 1.67
D. 0.67
Answer» D. 0.67


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