Air expands through a turbine operating at steady state on an instrumented test stand. At the inlet p1 = 160 lbf/in2, T1 = 1560oR. And at the exit, p2 = 14.8 lbf/in2. The mass flow rate of air entering the turbine is 10.5 lbm/s, and the power developed is measured as 2550 horsepower. Neglecting the heat transfer, KE and PE changes, find exit temperature