Nitrogen gas at 60 kPa and 7°C enters an adiabatic diffuser steadily with a velocity of 275 mls and leaves at 85 kPa and 27°e. Determine (a) the exit velocity of the nitrogen and (b) the ratio of the inlet to exit area A /A2. What is the exit velocity? What is the ratio of the inlet to exit area A1/A2?