Co-efficient of performance of a Carnot cycle refrigerator operating between – 23°C and + 27°C is ________________? August 20, 2021February 7, 2019 by admin Co-efficient of performance of a Carnot cycle refrigerator operating between – 23°C and + 27°C is ________________? A. 3B. 5 C. 0.5 D. 1.5