A refrigeration plant is designed to work between -3°C and 27°C. The – McqOptions

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1.	A refrigeration plant is designed to work between -3°C and 27°C. The plant works on the Carnot cycle. If the same plant is used as a heat-pump system, then the COP of the heat pump becomes:
A.	10
B.	9
C.	8
D.	7
Answer» B. 9

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