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8. [5 Pts] (Textbook 4.17) In a jet engine, a flow of air at 1000 K, 200 Kpa, and 30 m/s enters a nozzle,

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8. [5 Pts] (Textbook 4.17) In a jet engine, a flow of air at 1000 K, 200 Kpa, and 30 m/s enters a nozzle, where the air exits at 850 K, 90 KPa. Assume ideal gas behaviors. (a) What is the exit velocity of air if the process is adiabatic? [3 Pts] (b) What is the area ratio between the entrance and exit? [2 Pts]

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