Nitrogen enters an adiabatic diffuser at 75 kPa, -23oC and 240 m/s. The inlet diameter of the

Question:

Nitrogen enters an adiabatic diffuser at 75 kPa, -23oC and 240 m/s. The inlet diameter of the diffuser is 80 mm. It leaves at 100kPa, and 21 m/s. Determine
(a) The mass flow rate of the air.
(b) The temperature of the air leaving the diffuser.
(c) The rate of entropy generation in the diffuser's universe. Neglect PE.