PROBLEM 1 Refrigerant 22 flows through a horizontal tube having an inside diameter of 4 cm. The refrigerant flows at steady state and at the entrance to the tube it has with a quality of 0.3, temperature of 28*C, and velocity of 8 m/s. The refrigerant exits the tube as a saturated liquid at 14 bar. Question: Determine: (a) the mass flow rate of the refrigerant, in kg/s. (b) the velocity of the refrigerant at the exit, in m/s. (c) the rate of heat transfer, in kW, and its associated direction with respect to the refrigerant