Question: A normal shock wave across which the pressure ratio is 1 . 2 5 is propagating down a duct containing still air at a pressure

A normal shock wave across which the pressure ratio is 1.25 is propagating down a duct containing still air at a pressure of 120 kPa and a temperature of 35\deg C. This shock wave is reflected off the closed end of the duct. Find the pressure and temperature behind the reflected shock wave.

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