Air enters an adiabatic nozzle steadily at 400kPa, 200oC and 35m/s and leaves at 150kPa and 180

Question:

Air enters an adiabatic nozzle steadily at 400kPa, 200oC and 35m/s and leaves at 150kPa and 180 m/s. The inlet area of the nozzle is 75cm2. Determine
(a) The mass flow rate.
(b) The exit temperature of the air.
(c) The exit area of the nozzle,
(d) The rate of entropy generation in the nozzle's universe. Use the IG model for air.