1. R-134 enters the condenser of a window air conditioning unit at 800 kPa and 35 C and leaves as a saturated liquid at the same pressure. The compressor current draw is measured to be 5 amps at 240 V and the R-134 has a mass flow rate of 0.018 kg/s.
a. What is the COP of the AC unit?
b. What is the rate of heat rejection to the outside air via the condenser?