Aroom is kept at -5c by a vapour comprression refrigeration cycle with r-134a as the refrigerant. heat is rejected to cooling water that enters the condenser at 20°c at a rate of 0.13 kg/s and leaves at 28°c. the refrigerant enters the condenser at 1.2 mpa and 50°c and leave as a saturated liquid. if the compressor consumes 1.9 kw of power, determine: a) the refrigeration load and cop, the second law efficiency of the refrigerator and the total exergy destruction in the cycle, and b) c) the exergy destruction in the condenser