An adiabatic nozzle receives air at 20°C, 150 kPa, and 2 m/s. The air exits at 200 m/s and 105 kPa. (a) Determine the entropy generation per kg of air for the nozzle. (b) Plot the entropy generation per kg of air for exit pressures ranging from 80 kPa to 140 kPa. At what exit pressures is the operation of the nozzle impossible as described?
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