Equilibrium, Stability, and Displacements

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Irreversible Processes

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Critères de stabilité et d'évolution des systèmes électrochimiques hors d'équilibre

The Glansdorff-Prigogine linear stability theory of non equilibrium processes as well as the associated evolution criterion, are extended to polarized systems. The equilibrium stability conditions are derived from the negative definite form of the second differential of entropy. Additional inequalities are obtained giving rise to dipole stability conditions. The non equilibrium stability condition is formulated by using a Liapounoff function including both the second differential of entropy production and a negative term related to the electromagnetic energy. The explicit form is then calculated by means of the excess balance equations for mass and energy as well as the Maxwell equations applied to the disturbance of the electromagnetic field. When convection occurs, the excess balance equation for momentum is also required.Sanfeld Albert, Steinchem-Sanfeld Annie. Critères de stabilité et d'évolution des systèmes électrochimiques hors d'équilibre. In: Bulletin de la Classe des sciences, tome 57, 1971. pp. 684-701

Interfacial dipole orientation-A thermodynamic approach

A thermodynamic relation between the affinity and the rate of orientation is shown for rigid dipoles at the interface of two immiscible media. The influence of the temperature and of the dielectric constant is analysed. A relaxation process towards equilibrium for the interfacial tension is discussed. © 1990 Società Italiana di Fisica.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Thermodynamics of Surfaces

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Répartition des pressions dans un fluide chargé et polarisé

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Orientation superficielle: Généralisation du théorème de Gibbs

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