A diatomic gas with a 32 g/mol molecular weight is 300 K and 2.5 atm. The gas flows through a pipe in an isothermal compressible flow with an ID of 3 inches. The mass velocity at the entrance to the pipe is 150 kg/m² .s. a) Calculate the pressure at the exit in atm. b) Calculate the maximum allowable exit velocity in m/s.

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