A heat pump with refrigerant a as the working fluid is used to keep a space in deg C by absorbing heat from geothermal water that enters the evaporator at deg C at a rate of kgs and leaves a deg C The refrigerant enters the evaporator at deg C with a quality of and leaves at the samw pressure as saturated vapor. If the compressor consumes kw of power, determine a the evaporator pressure and the mass flow rate of the refrigerant and a the heating load and the COP. Take the specke heat of mater to be kjkg deg C