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 0.25 kg/s. The condenser and evaporator pressures are 1400 and 320 kPa, respectively. Show the cycle on a 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.
(c) The COP of this heat pump.