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A heat pump is used in place of a furnace for heating a house. In winter,...

A heat pump is used in place of a furnace for heating a house. In winter, when outside air temperature is 15F, the heat loss from the house is 100,000 btu/h. The inside is maintained at 70F.
Find the Carnot COP, the minimum electric power required to operate the heat pump in kW, and the actual electric power to operate the heat pump with a COP of 3.
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