What is the maximum change in entropy and work that can be produced in a steady state flow process for 12 moles of nitrogen at 800K and 50 bar, if the ambient temperature and pressure are at 300K and 1.0133 bar. assuming nitrogen is an ideal gas.

the following data are for steam power plant:Pressure and temperature of steam at boiler exit and turbine inlet (state2)=30 bar and 300°C. Pressure and quality of steam at turbine exit and condenser inlet (state 3) =20 kpa and 95%.Pressure of saturated water at condenser exit and pump inlet (state 4)=20 kpa.Pressure and temperature of water at pump exit and boiler inlet (state1)=30 bar and 100°C.Steam flow rate =15 kg/s.The heat losses from the body of the turbine =100 kW.Determine the thermal efficiency of the steam power plant

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Thermodynamics