Composition Dependence and Inversion of α<SUB>T</SUB> of N<SUB>2</SUB>–CO Gas Mixture

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  • Composition Dependence and Inversion of αT of N2-CO Gas Mixture
  • Composition Dependence and Inversion of

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Abstract

The available concentration variation on In qe data of isobaric N2–CO gas mixtures in a hot wall thermal diffusion column has been utilised to calculate the composition dependence of thermal diffusion factor αT at three experimental temperatures 350.1, 368.1 and 432.0 K. It is found that there is always an inversion of αT as a function of composition for these experimental temperatures, indicating further that this inversion phenomenon occurs in a well-defined temperature range 248.6 K to 610.1 K. If the experimental conditions on composition and temperature fall within the area enclosed by the inversion curve and the temperature axis, in general, N2 enriches at the top of the column; if they are outside, then N2 enriches at the bottom.

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