Avapour compression cycle using r134a refrigerant operated with an evaporator absolute pressure of 2 bar and a condenser saturation absolute pressure of 8 bar. the vapour entering the compressor is saturated at 2 bar and the liquid leaving the condenser is saturated at 8 bar. assuming the compression process is isentropic i. sketch the process on a p-h diagram. ii. identify the pressure and enthalpy at each of the four points on the refrigeration cycle. iii. calculate the coefficient of performance of the cycle.