Steam flows through an adiabatic steady flow turbine. The enthalpy at entrance is 4142 kJ/kg and at exit 2585 kJ/kg. The values of flow availability of steam at entrance and exit are 1787 kJ/kg and -140 kJ/kg , respectively. If the dead state temperature T0 is 300 K, determine, per kg of steam, the actual work, the maximum possible work for the given change of state of steam, and the change in entropy of steam. Neglect changes in kinetic and potential energy.