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Nitrogen gas at 63 kPa and 7 C enters an adiabatic difuser steadily with a velocity of 280 m/s and leaves at 95 kPa and 28 C. The molar mass of nitrogen is M- 28 kg/kmol and the enthalpies are 8141 kJ/kmol at 7 C and 8723 kJ/kmol at 28 C. a. Write down the energy balance equation specific to this problem. b. Determine the exit velocity. c. The ratio of the inlet to exit area Ai/A2.

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Answer #1

Energy Bulance enep 2 21015 kJlba 31.536 kJllig 2 2. 2 2 191.911 Constanu as Srumi

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