GATE Mechanical Engineering (ME) 2017 Shift 1 Solved Paper

The pressure ratio across a gas turbine (for air, specific heat at constant pressure, c_p = 1040 J/kg.K and ratio of specific heats, γ = 1.4) is 10. If the inlet temperature to the turbine is 1200 K and the isentropic efficiency is 0.9, the gas temperature at turbine exit is ________ K.