Air is expanded adiabatically in a turbine from 540 deg. C and 1350 kPa to 200 deg. C. If the process had been reversible, the final temperature would have been 175 deg. C for the same discharge pressure. Determine a) work produced per kilogram of air (kJ/kg) b) the change in entropy for the air (kJ/kg*K). Assume ideal gas, constant specific heat Cpo = 1.0035 kJ/kg*K Thanks for the help