An ideal refrigeration cycle uses R134a as the working fluid. The refrigerant leaves the evaporator at 2

Question:

An ideal refrigeration cycle uses R134a as the working fluid. The refrigerant leaves the evaporator at 2 24SC and enters the throttle at 45 SC. If it produces 40 kl'S of heating, calculate:
(i) The power input to the compressor
(ii) The heat input to the evaporator
(iii) The coefficient of performance for the heat pump
(iv) The volume rate of flow entering the compressor