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2. (10 pts) Air modeled as an ideal gas enters a turbine operating at steady state at 1040 K, 278 kPa and exits at

2. (10 pts) Air modeled as an ideal gas enters a turbine operating at steady state at 1040 K, 278 kPa and exits at 120 kPa. The mass flow rate is 5.5 kg/s, and the power developed is 1120 kW. Stray heat transfer and kinetic and potential energy effects are negligible. (a) Find the isentropic turbine efficiency using the IG tables. (b) Assuming k=1.4, find the isentropic turbine efficiency using the online calculator (c) Using either method, determine the outlet temperature, in K.

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