Avapor-compression refrigeration cycle with f-12 as the working fluid has condenser inlet conditions if 200 psi, 230 f and evaporator exit conditions of 20 psi, 10 f. the freon leaves the condenser at 110 f. mass flow rate is 5 lbm/s. a) calculate the actual compressor power (horsepower) b) calculate the actual cooling rate in tons. c) find the temperature at the evaporator inlet. d) calculate compressor efficiency.

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.