Onsager reciprocal relations


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Onsager reciprocal relations

[′ȯn‚säg·ər ri′sip·rə·kəl ri′lā·shənz]
(thermodynamics)
A set of conditions which state that the matrix, whose elements express various fluxes of a system (such as diffusion and heat conduction) as linear functions of the various conjugate affinities (such as mass and temperature gradients) for systems close to equilibrium, is symmetric when certain definitions are chosen for these fluxes and affinities.
References in periodicals archive ?
The experimental verification of the Onsager reciprocal relations.
1) Known as a Onsager reciprocal relation, (2-4) the above conversion effect of seismic and electromagnetic (EM) signals in porous media is useful for monitoring oil and gas reservoirs.
As one of the possible generation mechanisms of the co-seismic EM signals, electrokinetic effect, (33,34) which satisfies the Onsager reciprocal relation, (4) has been paid much attention.