Q$3.($A$)$ Refrigerant$-134$a enters the evaporator coils placed at the back of the freezer section of a

household refrigerator at $100$ kPa with a quality of $20$ percent and leaves at $100$ kPa and $-26C.$ If the

compressor consumes $600$ W of power and the COP of the refrigerator is $1\mathrm{.}2$ determine $($a$)$ the mass

flow rate of the refrigerant and $($b$)$ the rate of heat rejected to the kitchen air.