Steam flows steadily through a work-producing, adiabatic, single-flow device with a flow rate of 7 kg/s. At

Question:

Steam flows steadily through a work-producing, adiabatic, single-flow device with a flow rate of 7 kg/s. At the inlet h = 3589 kJ/kg, s = 7.945 kJ/kg-K, and at the exit h = 2610 kJ/kg, s = 8.042 kJ/kg-K. If changes in ke and pe are negligible, determine
(a) The work produced by the device.
(b) The rate of entropy generation within the device. What-if Scenario: What would the answer in part (b) be if the device lost 5 kW of heat from its surface at 200oC?