Physics, 01.07.2021 23:00 jljhenkel

Air enters a nozzle in steady flow at 280 kPa and 77 C with a velocity of 50 m/s. The air leaves the nozzle at 85 kPa and 320 m/s. The atmosphere which surrounds the nozzle is at 20 C. The nozzle is not well insulated; heat transfer losses from the nozzle are estimated as 0.35 kJ/kg. Using the air tables find the exit temperature of the air and the total entropy change for the process.

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Air enters a nozzle in steady flow at 280 kPa and 77 C with a velocity of 50 m/s. The air leaves the...