The Sign of the Reaction Volume for the Water/Silica Reaction

In the present contribution, we deal with the question whether the equilibrium of the silica/water reaction shifts under tensile stresses to an increased or reduced hydroxyl concentration or, equivalently, which sign the reaction volume shows. From our analysis on the basis of the Le Chatelier–Braun...

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Bibliographic Details
Published inGlass physics and chemistry Vol. 46; no. 1; pp. 49 - 52
Main Authors Schell, K. G., Bucharsky, E. C., Fett, T.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2020
Springer Nature B.V
Subjects
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Materials Science
Natural Materials
Physical Chemistry
Silicon dioxide
Stresses
the sign of the reaction volume
the water/silica reaction
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Summary:In the present contribution, we deal with the question whether the equilibrium of the silica/water reaction shifts under tensile stresses to an increased or reduced hydroxyl concentration or, equivalently, which sign the reaction volume shows. From our analysis on the basis of the Le Chatelier–Braun Theorem, it can be concluded that the equilibrium constant of the water/silica reaction is enhanced due to tensile stresses and that the reaction volume change is positive.
ISSN:1087-6596
1608-313X
DOI:10.1134/S1087659620010149