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In: Mechanical Engineering

A gas mixture having a mass fraction of 20 percent nitrogen. 20 percent helium and 60...

A gas mixture having a mass fraction of 20 percent nitrogen. 20 percent helium and 60 percent methane This mixture is expanded from 2800 kPa and 160°C to 150 kPa in adiabatic steady flow turbine of 80 percent isentropic efficiency Kinetic and potential energy effects are negligible. By

using ideal gas at room temperature, determine

(a) The average molar mass of the gas mixture

(b) The specific heats of the gas mixture

(The temperature at the exit of the turbine

(d) The power produce by the turbine

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