The work developed by the turbine per kg of gas flow is

Question

In a gas turbine, hot combustion products with the specific heats C_p = 0.98 kJ/kg K, and C_v = 0.7538 kJ/kg K enter the turbine at 20 bar, 1500 K and exit and 1 bar. The isoentripic efficiency of the turbine is 0.94. The work developed by the turbine per kg of gas flow is                                                                 

      (a) 689.64 kJ/kg

      (b) 794.66 kJ/kg

      (c) 1009.72 kJ/kg

      (d) 1312.00 kJ/kg