Air is expanded in an adiabatic nozzle during a polytropic process with n = 1.3. It enters...

Air is expanded in an adiabatic nozzle during a polytropic process with n = 1.3. It enters the nozzle at 700 kPa and 100°C with a velocity of 30 m/s and exits at a pressure of 200 kPa. Calculate the air temperature and velocity at the nozzle exit.