Saturated liquid R-134a at an absolute pressure of 9 bar (State 1) steadily enters a throttling valve and exits at an absolute pressure of 2 bar (State 2). The refrigerant exiting the throttling valve enters a heat exchanger and is heated to an absolute pressure of 2 bar and a temperature of 10C (State 3) using liquid water. The liquid water enters the heat exchanger steadily with a mass flow rate of 2 kg/s at an absolute pressure of 1 bar and a temperature of 25C (State 4) and exits at an absolute pressure of 1 bar and a temperature of 15C (State 5). Specific heat of liquid water = 4.18 kJ/kg-K (a) Calculate the temperature change of R-134a across the throttling valve, in C. (b) Find the mass flow rate of R-134a, in kg/s. (c) Show the process for R-134a on T-v diagram relative to the vapor dome and the appropriate lines of constant pressure for the three states. Label states and identify process directions with arrows. For R- 134a: Pcritical = 40.6 bar and Tcritical = 101C