Thermodiffusion in binary liquids: the role of irreversibility
Langue
en
Article de revue
Ce document a été publié dans
Journal of Physics: Condensed Matter. 2014-01-01, vol. 26, n° 3, p. 035105 (1-5)
IOP Publishing
Résumé en anglais
We study thermal diffusion in binary mixtures in the framework of non-equilibrium thermodynamics. Our formal result displays the role of partial enthalpies hi and Onsager's generalized mobilities Ai. The ratio A1/A2 provides ...Lire la suite >
We study thermal diffusion in binary mixtures in the framework of non-equilibrium thermodynamics. Our formal result displays the role of partial enthalpies hi and Onsager's generalized mobilities Ai. The ratio A1/A2 provides a measure for the irreversible character of thermal diffusion. Comparison with experimental data on benzene, cyclohexane, toluene and n-alkanes shows that irreversibility is essential for thermal diffusion, and in particular for the isotope effect.< Réduire
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