A turbojet aircraft is flying with a velocity of 300 m/s at an altitude of 6000 m,

Question:

A turbojet aircraft is flying with a velocity of 300 m/s at an altitude of 6000 m, the ambient conditions are 45 kPa and -15oC. The compressor pressure ratio is 14 and the turbine inlet temperature is 1500 K. Assuming ideal operation of all components and constant specific heats, determine
(a) The pressure at the turbine exit,
(b) The velocity of the exhaust gases and
(c) The propulsive efficiency (Î·P).