Problem 5 (20 points): A thermodynamic device operates in stead state and uses the refrigerant R-134a as its working fluid. The following operating conditions are known: P1 = 600 kPa, T1 = 50 C, V = 5.0 m/s, 21 = 5.0 m, Pa = 180 kPa, h2 = 100.0 kJ/kg, V2 = 45.0 m/s, z2 = 35.0 m If the mass flow rate of refrigerant in the system is 1.0 kg/s, determine: (A) the quality at state 2, X2. (B) the work required by the device, W, if changes in kinetic and potential energy are neglected, and (C) the work required by the device, W, including the effects of kinetic and potential energy. Is it reasonable to neglect the changes in kinetic and potential energy across this system? Why or why not? 2 X2 Neglecting KE and PE W = Including KE and PE W