Theory of the soret effect
Webb31 aug. 1998 · The theory is applicable to mixtures in which the Soret effect is determined mainly by the energetic interaction between the molecules, such as liquids and dense … Webb27 sep. 2001 · A comprehensive theory for the Soret effect (also called thermal diffusion) is presented which incorporates both the thermodynamic contribution from selective …
Theory of the soret effect
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WebbThe elementary transition state approach has been used to obtain a simple model theory for the Soret effect (thermal diffusion) and the Dufour effect. The flow of heat in the … Webb1 jan. 2002 · The temperature gradient in the fluid induces the redistribution of surfactant molecules or ions near the particle. The redistribution leads to a loss in the balance of the stress on the particle surface, and that results in the grain movement along the temperature gradient.
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WebbA characteristic feature of the Soret effect in several electrolytes is the experimentally discovered [1] sign reversal of molecular separation at certain mean temperature and concentration levels. Known theories of heat-mass transfer phenomena in electrolytes [2,3, 4] based on the Debye-HUckel model do not WebbThe Soret effect in silicate melts has attracted attention in earth and material sciences, ... Here, for the first time, we report a quantitative comparison between experiment and theory concerning the Soret coefficient in binary glass-forming oxide melts. We measured the Soret coefficient of 11Na 2 O89B 2 O 3 ...
Webb8 okt. 2001 · A comprehensive theory for the Soret effect (also called thermal diffusion) is presented which incorporates both the thermodynamic contribution from selective attraction/repulsion and the...
WebbA mechanism of the Ludwig-Soret effect has been proposed and formulated after the recent theory of viscosity and diffusion. The important assumption therein adopted is … germany economic system todayWebb16 feb. 2024 · The Soret effect in silicate melts has attracted attention in earth and material sciences, particularly in glass science and engineering, because a … christmas carols childrenWebb1 maj 2002 · In addition to ordinary diffusive transport, thermal diffusion is a molecular phenomenon which may create a concentration gradient (the Soret effect: Chipman, 1926) and is a function of... christmas carols cds bestWebb30 mars 2009 · A theoretical approach to the description of the Soret effect in binary nonpolar liquids is proposed. The temperature gradient of the partial pressure is determined as the driving force of thermal diffusion. The hard-sphere fluid is chosen as a reference system and an explicit relation for the Soret coefficient is found. germany economy 2017WebbSoret effect and Dufour effect represent the coupled phenomena between the vectorial flows of heat and mass. Since many chemical reactions within a biological cell produce or consume heat, local temperature gradients may contribute in the transport of materials across biomembranes. christmas carols cdWebb13 apr. 2024 · Given the importance of preserving the mechanical properties of recycled iPP during its processing, this work provides an improved understanding of the … christmas carols christmas eveWebb11 apr. 2024 · The main objective of the present analysis is to investigate simultaneously the effect of heat and mass transfer through fluid saturated porous medium in the presence of heat absorption and first order homogeneous … christmas carols clip art free