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Air is expanded isentropically in an adiabatic turbine, to produce 115 kW of power. If the...

Air is expanded isentropically in an adiabatic turbine, to produce 115 kW of power. If the mass flow rate is 0.75 kg/s, and the air at the exit is 500 K and 155 kPa, then what is the temperature and pressure at the inlet of the turbine?

(a) The temperature is? K

(b) The pressure is? kPa

NOTE: Do NOT approximate the air as having a constant specific heat.

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