In a gas turbine, hot combustion products enter the turbine at 18 bar and 1400 K and exit at 1 bar and 719 K. The isentropic efficiency of the turbine is 0.9. The work developed by the turbine is, (Assume Cp = 1 kJ/kgK )
1
616 kJ/kg
2
605 kJ/kgK
3
613 kJ/kg
4
610 kJ/kg