Refrigerant 22 is used in the evaporator pipe of a commercial refrigeration unit. At steady state it flows at a rate of 0.5 kg/s through the pipe of constant diameter. It enters the pipe at -?100C with a velocity of 5 m/s and a quality of 25%. It exits at the same temperature, but as saturated vapor. (a) Draw a schematic and show the control volume you have selected; (b) Calculate the diameter of the pipe; and (c) Calculate the velocity of the refrigerant at the exit of the pipe.