Physical Transformation AtlasPTA
Phenomenon · phenomenon:soret-effect

Soret effect

A temperature gradient in a mixture drives a concentration gradient as species migrate toward the hot or cold side. A thermal disequilibrium becomes a chemical one.

Thermodynamicsfirst reported 1856also: thermodiffusion, thermophoresis in liquids

Atlas record: 4 claims reference this phenomenon — 4 established.

Explorerelations · matrix context · routes · sources · cite

conditions: liquid · temperature gradient required
4claims24enumerated routes0routes with complete-composition evidence7candidate routes not searched3cited sources

Relations

drives · 1
Temperature gradient—drives→Soret effectestablished
  • a liquid mixture or solution under a steady temperature gradient
produces · 1
Soret effect—produces→Concentration gradientestablished
member of · 1
Soret effect—member of→Thermodiffusiveestablished
governed by · 1
Soret effect—governed by→Onsager–Casimir reciprocityestablished
  • the Soret and Dufour coefficients are Onsager-reciprocal

Matrix context

D = disequilibrium row · C = coupling family column. A cell reads the state of the atlas for that pair.

Enumerated routes through this · 24

Cited sources · 3

  1. [1]
    S. R. de Groot, P. Mazur. Non-Equilibrium Thermodynamics (1962)
    North-Holland · book, no DOI · record
  2. [2]
    L. Onsager. Reciprocal relations in irreversible processes. I. (1931)
    Physical Review 37, 405 · doi:10.1103/PhysRev.37.405 · crossref ✓ 2026-09-19 · record
  3. [3]
    C. Soret. Sur l'état d'équilibre que prend au point de vue de sa concentration une dissolution saline primitivement homogène dont deux parties sont portées à des températures différentes (1879)
    Archives des Sciences Physiques et Naturelles 2, 48–61 · paper, no DOI · record

Cite this entity

Physical Transformation Atlas (2026). entity phenomenon:soret-effect: Soret effect. Dataset revision rbfbfcbb70e57 (hash of the canonical data). https://physical-transformation-atlas.wldud5192.workers.dev/phenomenon/soret-effect

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