Question

If a 35.2%-efficient Carnot heat engine (left figure) is run in reverse so as to form a refrigerator (right figure), what would be this refrigerator's coefficient of performance?

Work Wis done on
the heat pump.
Hot reservoir
at Th
Energy Q
is expelled
to the hot
reservoir
W
Heat
pump
Energy IQd
is drawn
from the
Cold reservoir
cold
at T
reservoir.

Image Transcription

Work Wis done on the heat pump. Hot reservoir at Th Energy Q is expelled to the hot reservoir W Heat pump Energy IQd is drawn from the Cold reservoir cold at T reservoir.

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