4. (10 points) H2O enters a steadily operating, adiabatic turbine at 100 bar, and 600 °C and leaves at 100kPa. The isentropic efficiency of this turbine is 80%. The mass

flow rate through this turbine is 20 kg/s. b) Please determine the temperature, specific enthalpy, and specific entropy of water at exit. p) Please determine the power output of this turbine. 5) Please determine the rate of entropy production.