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mechanical engineering heat transfer refrigeration and air conditioning
1. The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
(A): (C.O.P)P = (C.O.P)R
(B): (C.O.P)P = (C.O.P)R - 1
(C): (C.O.P.)P = (C.O.P.)R + 1
(D): (C.O.P.)P = (C.O.P.)R + 2
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