GATE Mechanical Engineering (ME) 2017 Shift 2 Solved Paper

A calorically perfect gas (specific heat at constant pressure 1000 J/kg K) enters and leaves a gas turbine with the same velocity. The temperatures of the gas at turbine entry and exit are 1100 K and 400 K, respectively. The power produced is 4.6 MW and heat escapes at the rate of 300 kJ/s through the turbine casing. The mass flow rate of the gas (in kg/s) through the turbine is