Abstract
A strict approach to determine the adiabatic compressibility of a solvent at constant entropy of the solution is developed. It is shown that the apparent adiabatic compressibility of a solute is not strictly equal to the pressure derivative of the apparent molar volume of a solute at constant entropy of a solution in the general case. With this approach, the equation for hydration numbers and adiabatic compressibility of hydrate complexes is obtained thermodynamically correctly. Parameters of the hydration of potassium chloride, bromide, and iodide are found.
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Original Russian Text Copyright © 2011 by V. N. Afanasiev and A. N. Ustinov
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Translated from Zhurnal Strukturnoi Khimii, Vol. 52, No. 3, pp. 503–512, June–July, 2010.
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Afanasiev, V.N., Ustinov, A.N. A study of the hydration of potassium halides by adiabatic compression. J Struct Chem 52, 488–496 (2011). https://doi.org/10.1134/S0022476611030061
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DOI: https://doi.org/10.1134/S0022476611030061