Results 201 to 210 of about 24,553 (259)
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Soret Effect in Interacting Micellar Solutions
Physical Review Letters, 2002We show that electrostatic effects have a dramatic influence on thermal diffusion of charged micelles. In the dilute regime, the Soret coefficient strongly decreases with the solution ionic strength, and scales as the square of the Debye-Hückel length. Yet, collective effects yield a reversed scenario even at fairly low surfactant concentration.
PIAZZA, ROBERTO, GUARINO A.
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Journal of Physics and Chemistry of Solids, 1985
Abstract Thermal diffusion in solids is studied for a one-component system by the path probability method of irreversible statistical mechanics based on the vacancy mechanism from the atomistic point of view. The treatment allows a microscopic description of so far controversial concepts such as the heat of transport and leads to analytical ...
Koh Wada +3 more
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Abstract Thermal diffusion in solids is studied for a one-component system by the path probability method of irreversible statistical mechanics based on the vacancy mechanism from the atomistic point of view. The treatment allows a microscopic description of so far controversial concepts such as the heat of transport and leads to analytical ...
Koh Wada +3 more
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Separation Science, 1969
Abstract In an attempt to set up a simple laboratory experiment for illustrating and assessing thermal diffusion in solutions we were surprised to find that, owing to the arrangement used, the solute became more concentrated at the hot end instead of at the cold end as is almost always the case.
W. G. Breck, H. C. Sutcliffe
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Abstract In an attempt to set up a simple laboratory experiment for illustrating and assessing thermal diffusion in solutions we were surprised to find that, owing to the arrangement used, the solute became more concentrated at the hot end instead of at the cold end as is almost always the case.
W. G. Breck, H. C. Sutcliffe
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Soret effect in forced Rayleigh scattering
Applied Physics B Photophysics and Laser Chemistry, 1987In forced Rayleigh scattering of mixtures or suspensions the temperature gratings generate, by the Soret effect, concentration gratings that may be very important since they produce both a phase and an amplitude grating superimposed on the principal one. The experimental evidence of their influence was given by Thyagarajan and Lallemand using a mixture
BLOISI, FRANCESCO +6 more
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Self focusing induced by Soret effect
Optics Communications, 1990no ...
Freysz, E. +3 more
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Soret effect in molecular mixtures
Physical Review E, 2009A 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.
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The Ludwig–Soret effect and stochastic processes
The Journal of Chemical Thermodynamics, 2011Abstract New general stochastic models of thermodiffusion are proposed, which include velocity-dependent friction coefficient and noise tensor. These coefficients are computed exactly from the Boltzmann equation for the particular case of thermodiffusion in dilute gas mixtures.
Debbasch, F., Rivet, J.P.
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Nature, 1952
ALTHOUGH thermal diffusion in condensed systems has been used experimentally for bringing about difficult separations, for example, in the Clusius and Dickel apparatus, and although considerable advances have been made recently in the descriptive treatment of the effect by Prof. S. R. de Groot1 at Utrecht and Prof.
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ALTHOUGH thermal diffusion in condensed systems has been used experimentally for bringing about difficult separations, for example, in the Clusius and Dickel apparatus, and although considerable advances have been made recently in the descriptive treatment of the effect by Prof. S. R. de Groot1 at Utrecht and Prof.
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Superseparation: Soret Effect Reversed
Separation Science and Technology, 1980Abstract The Soret effect is attributable primarily to the fact that osmotic pressure IS the same across a solution when heating one side and cooling the other. When Whatman #40 filter paper was interspersed throughout an aqueous solution to minimize disturbance of the Soret effect caused by convection, the Soret effect was reversed.
H. T. Hammel, J. E. Maggert
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Role of mixing thermodynamic properties on the Soret effect
The Journal of Chemical Physics, 2022We demonstrate that the modified Kempers model, a recently developed theoretical model for the Soret effect in oxide melts, is applicable for predicting the composition dependence of the Soret coefficient in three binary molecular liquids with negative enthalpies of mixing.
Tomohiro Kiyosawa +7 more
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