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  3. 332 nitrogen can be liquefied using a joulethomson expansion process...

Question: 332 nitrogen can be liquefied using a joulethomson expansion process...

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3.32 Nitrogen can be liquefied using a Joule-Thomson expansion process. This is done by rapidly and adiabatically expanding cold nitrogen gas from high pressure to a low pressure. If nitrogen at 135 K and 20 MPa undergoes a Joule-Thomson expansion to 0.4 MPa, a. Estimate the fraction of vapor and liquid present after the expansion, and the temperature of this mixture using the pressure-enthalpy diagram for nitrogen. b. Repeat the calculation assuming nitrogen to be an ideal gas with Cp 29.3 J/(mol K).

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