A perfectly reversible heat pump with a coefficient of performance of 14 supplies energy to a building as heat to maintain its temperature at 27 $\degree$C. If the pump motor does work at the rate of 1 kW, at what rate does the pump supply energy to the building?
A) 15 kW
B) 3.85 kW
C) 1.35 kW
D) 1.07 kW
E) 1.02 kW

Question

Quizplus · Accepted Answer

The coefficient of performance (COP) of a heat pump is defined as the ratio of the heat supplied to the building to the work done by the pump motor. In this case, the COP is 14, which means that for every 1 kW of work done by the pump motor, 14 kW of heat is supplied to the building.

A Perfectly Reversible Heat Pump with a Coefficient of Performance °\degree°

A Perfectly Reversible Heat Pump with a Coefficient of Performance $\degree$