Effect of the energy of zero vibrations and the entropy of reagents on the kinetic isotopic effect of the hydrogen evolution reaction
Autor: | L. I. Krishtalik |
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Rok vydání: | 2000 |
Předmět: | |
Zdroj: | Russian Journal of Electrochemistry. 36:799-801 |
ISSN: | 1608-3342 1023-1935 |
DOI: | 10.1007/bf02757685 |
Popis: | The effect the difference in zero energies and entropies of isotopic forms of reagents has on the difference in free energies of the elementary act of discharge of a hydronium ion for an initial equilibrium configuration of a reaction complex and equilibrium (ground) energy levels is considered. The analysis is performed for conditions of constancy of potential and constancy of overvoltage: only in the latter case one does not have to resort to extrathermodynamic assumptions. It is shown that differences in entropies of isotopic forms play a substantial role |
Databáze: | OpenAIRE |
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