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A turbojet aircraft is flying with a velocity of 320 m/s at a certain altitude, where...

A turbojet aircraft is flying with a velocity of 320 m/s at a certain altitude, where the ambient conditions are 32 kPa and -32°C. The pressure ratio across the compressor is 12, and the temperature at the turbine inlet is 1400K. Air enters the compressor at a rate of 40 kg/s, and the and the jet fuel has a heating value of 42700 kJ/kg. Assuming ideal operations for all components and constant specific heats for air at room temperature, (Cp=1.005 kJ/kg°K, and k=1.4) determine:

a) the velocity of the exhaust gases.

b) the propulsive power developed.

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