A heat pump that operates on the ideal vapor compression cycle with refrigerant - 134a is used to heat a house. The mass flow rate of the refrigerant is 0.180 kg/s. The condenser and evaporator pressure are 900 kpa and 200 kpa, respectively. Show the T-S diagram with respect to saturation lines and determine a) The rate of heat supply to the house b) The volume flow rate of the refrigerant at the compressor inlet and COP of this heat pump.