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Steam enters an adiabatic turbine steadily at 7 MPa, 500 degree C, and 45 m/s, and leaves at 100 kPa and 75 m/s

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Steam enters an adiabatic turbine steadily at 7 MPa, 500 degree C, and 45 m/s, and leaves at 100 kPa and 75 m/s. If the power output of the turbine is 5 MW and the isentropic efficiency is 77 percent, determine (a) the mass flow rate of steam through the turbine, (b) the temperature at the turbine exit, and (c) the rate of entropy generation during this process.