Air at 80 kpa, 27 degrees c and 220 m/s eneters a diffuser at a rate of 2.5 kg/s and leaves at 42 degrees c. the exit area of the diffuser is 400 cm2. the air is estimated to lose heat at a rate of 18 kj/s during this process.
determine
a. the exit velocity.
b. the exit pressure of the air.