Air flows through a converging adiabatic duct with no loss, Ask an Expert

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Air flows through a converging adiabatic duct with no loss. The temperature at the inlet is 400 K. At the outlet the temperature is 500 K and the Mach number is 1.8

A) What is the Mach number at section one?

B) What is the ratio of the outlet area to the inlet area?

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