Gibbs energy of activation


Gibbs en·er·gy of ac·ti·va·tion

(gibz), the Gibbs energy that must be added to that already possessed by a molecule or molecules to initiate a reaction.

Gibbs,

J. Willard, U.S. mathematician and physicist, 1839-1903. Gibbs energy of activation - energy that must be added to that already possessed by a molecule(s) in order to initiate a reaction.Gibbs free energyGibbs theorem - substances that lower the surface tension of the pure dispersion medium tend to collect in its surface, whereas substances that raise the surface tension tend to remain out of the surface film.Gibbs-Donnan equilibrium - Synonym(s): Donnan equilibriumGibbs-Helmholtz equation - an equation expressing the relationship in a galvanic cell between the chemical energy transformed and the maximal electromotive force obtainable. Synonym(s): Helmholtz-Gibbs theoryHelmholtz-Gibbs theory - Synonym(s): Gibbs-Helmholtz equation