13153. The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by September 13, 2025 by Admin (C.O.P.)P = (C.O.P.)R + 2 (C.O.P.)P = (C.O.P.)R + 1 (C.O.P)P = (C.O.P)R – 1 (C.O.P)P = (C.O.P)R ✅ The correct answer is option B.