Dufour effect

The Dufour effect is the energy flux due to a mass concentration gradient occurring as a coupled effect of irreversible processes, named after L.

[1] It is the reciprocal phenomenon to the Soret effect.

[2] The concentration gradient results in a temperature change.

For binary liquid mixtures, the Dufour effect is usually considered negligible, whereas in binary gas mixtures the effect can be significant.

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