Interfacial Tension of Electrolyte Solutions
arXiv:cond-mat/0009092 · doi:10.1063/1.1321043
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.
contains two figures. Journal of Chemical Physics, in press
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