The converging-diverging nozzle shown in Fig P3.22 expands and accelerates dry air to supersonic speeds at the exit, where p2 = 8 kPa and T2 = 240 K. At the throat, p1 = 284 kPa, T1 = 665 K, and V1 = 517 m/s. For steady compressible flow of an ideal gas, estimate (a) the mass flow in kg/h, (b) the velocity V2, and (c) the Mach number Ma2.

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Ar- D2.5 cm