Question: Air flows through a duct with a constant cross-sectional area. The pressure, temperature, and Mach number at the inlet to the duct are 180

Air flows through a duct with a constant cross-sectional area. The pressure, temperature, and Mach number at the inlet to the duct are 180 kPa, 30 deg Celsius, and 0.28, respectively. If the Mach number at the exit of the duct has risen to 0.75 as a result of friction, determine the pressure, temperature, and velocity at the exit. Assume that the flow is adiabatic.

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