Air enters a converging-diverging nozzle at (2 mathrm{MPa}) absolute and (313 mathrm{~K}). At the exit of the

Question:

Air enters a converging-diverging nozzle at $2 \mathrm{MPa}$ absolute and $313 \mathrm{~K}$. At the exit of the nozzle, the pressure is $200 \mathrm{kPa}$ absolute.

Assume adiabatic, frictionless flow through the nozzle. The throat area is $20 \mathrm{~cm}^{2}$. What is the area at the nozzle exit? What is the mass flow rate of the air?

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