An office building requires a heat transfer rate of 20kW to maintain the inside temperature at 210C when the outside temperature is OOC. A vapor-compression heat pump with Refrigerant 134a as the working fluid is to be used to provide the necessary heating. The compressor operates adiabatically with an isentropic efficiency of 82%. Use the appropriate evaporator and condenser pressures of a cycle for this purpose assuming AT cond=ATevap=100C, as shown in the figure below. The states are numbered as in the figure below. The refrigerant exits the evaporator as saturated vapor and exits the condenser as saturated liquid at the respective pressures. T(C) 2s AT cond 21 0 ATevap 5 (i) Determine the mass flow rate of the refrigerant, in kg/s (ii) Determine the compressor power, in kW (iii) Determine the coefficient of performance and compare with the coefficient of performance of the Carnot heat pump cycle operating between the reservoirs at the inside and outside temperatures, respectively