Air enters an adiabatic turbine at steady state with a pressure of 10 bar and temperature...

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Air enters an adiabatic turbine at steady state with a pressure of 10 bar and temperature of 1250 K. It leaves the turbine at a pressure of 1 bar and 1000 K. Assume the specific heat ratio k, is constant at 1.4. What is the isentropic efficiency of this turbine, in % (e.g, 50%, not 0.50). Air enters an adiabatic turbine at steady state with a pressure of 10 bar and temperature of 1250 K. It leaves the turbine at a pressure of 1 bar and 1000 K. Assume the specific heat ratio k, is constant at 1.4. What is the isentropic efficiency of this turbine, in % (e.g, 50%, not 0.50).