Repeat Prob. 17-118 for a nozzle efficiency of 85 percent.
Prob. 17-118
Steam enters a converging-diverging nozzle at 1 MPa and 500°C with a negligible velocity at a mass flow rate of 2.5 kg/s, and it exits at a pressure of 200 kPa. Assuming the flow through the nozzle to be isentropic, determine the exit area and the exit Mach number.