Features of dimerization equilibrium in hard-sphere fluids
- Authors: Tkachev N.K.1, Peshkina K.G.1
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Affiliations:
- Institute of High-Temperature Electrochemistry, Ural Branch
- Issue: Vol 54, No 2 (2016)
- Pages: 300-302
- Section: Short Communications
- URL: https://journals.rcsi.science/0018-151X/article/view/156771
- DOI: https://doi.org/10.1134/S0018151X1602022X
- ID: 156771
Cite item
Abstract
We describe the deviations of the concentration of dimers from ideal behavior, which are connected with a change in the molar volume of liquid as a result of an elementary chemical reaction both within the spherical simplified model and taking into account the dumbbell-like shape of a dimer. A generalization of the model for a dimerizing hard-sphere fluid in the presence of a solvent with its own diameter value is considered. It is shown that with an increase in the particle size of the solvent, the nature of the concentration dependence of the enthalpy of mixing can vary from purely endothermic to alternating-sign with a pronounced exothermic effect at low and moderate content.
About the authors
N. K. Tkachev
Institute of High-Temperature Electrochemistry, Ural Branch
Author for correspondence.
Email: N.Tkachev@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137
K. G. Peshkina
Institute of High-Temperature Electrochemistry, Ural Branch
Email: N.Tkachev@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137
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