Question: Air at 500 kPa and 400 K enters an adiabatic nozzle at a velocity of 30 m/s and leaves at 300 kPa and 350 K.

Air at 500 kPa and 400 K enters an adiabatic nozzle at a velocity of 30 m/s and leaves at 300 kPa and 350 K. Using variable specific heats, determine
(a) The isentropic efficiency,
(b) The exit velocity, and
(c) The entropy generation.

Air 500 kPa 400 K 30 m/s 300 kPa 350 K

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