In an ideal refrigeration cycle, the temperature of the condensing vapour is 40oC and the temperature during evaporation is -20oC. Determine the coefficient of performance of this cycle for the working fluids; R12 and ammonia.
C.O.Pc = TL/(TH-TL)
The Attempt at a Solution
I don't understand how the working fluid would affect the results of the C.O.Pc (where c stands for carnot efficiency)