Question: Reconsider Prob. 17-68. Using EES (or other) software, solve the problem for the inlet conditions of 0.8 MPa and 1200 K. Prob. 17-68. Air at

Reconsider Prob. 17-68. Using EES (or other) software, solve the problem for the inlet conditions of 0.8 MPa and 1200 K.
Prob. 17-68.
Air at 900 kPa and 400 K enters a convergingnozzle with a negligible velocity. The throat area of the nozzle is 10 cm2. Approximating the flow as isentropic, calculate and plot the exit pressure, the exit velocity, and the mass flow rate versus the back pressure Pb for 0.9 $ Pb $ 0.1 MPa.

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