Interfacial Tension of Electrolyte Solutions
Soft Condensed Matter
2009-10-31 v1 Statistical Mechanics
Abstract
A theory is presented to account for the increase in surface tension of water in the presence of electrolyte. Unlike the original ``grand-canonical'' calculation of Onsager and Samaras, which relied on the Gibbs adsorption isotherm and lead to a result which could only be expressed as an infinite series, our approach is ``canonical'' and produces an analytic formula for the excess surface tension. For small concentrations of electrolyte, our result reduces to the Onsager-Samaras limiting law.
Keywords
Cite
@article{arxiv.cond-mat/0009092,
title = {Interfacial Tension of Electrolyte Solutions},
author = {Yan Levin},
journal= {arXiv preprint arXiv:cond-mat/0009092},
year = {2009}
}
Comments
contains two figures. Journal of Chemical Physics, in press