A piston cylinder device contains 3 lbm of refrigerant 12 at

Last updated: 6/7/2023

A piston cylinder device contains 3 lbm of refrigerant 12 at 120 psia and 120 F The refrigerant is cooled at constant pressure until it exists as a compressed liquid at 90 F If the temperature of the surroundings is 70 F determine A the work added to the refrigerant and B heat transfer removed from the system Also determine C the total entropy change of the system