Air expands through an adiabatic turbine from a pressure of 8 atm and a temperature of 800 K to a pressure of 1 atm and a temperature of 550 K. The inlet velocity to the turbine is small compared to the exit velocity from the turbine which is 80 m/s. The turbine operates at a steady state and develops a power output of 2900 kW. How much is the mass flow rate of air through the turbine in kg/s
