The environmentally safe refrigerant R-152a (see Problem 13.65) is to be evaluated as the working fluid for a heat pump system that will heat winter households in two different climates. In the colder climate the cycle evaporator temperature is 20C, and the more moderate climate the evaporator temperature is 0C. In both climates the cycle condenser temperature is 30C. For this study assume all processes are ideal. Determine the cycle coefficient of performance for the two climates.