A study of the hydration of potassium halides by adiabatic compression

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 entrop...

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Bibliographic Details
Published in:	Journal of structural chemistry Vol. 52; no. 3; pp. 488 - 496
Main Authors:	Afanasiev, V. N., Ustinov, A. N.
Format:	Journal Article
Language:	English
Published:	Dordrecht SP MAIK Nauka/Interperiodica 01-06-2011
Subjects:	Atomic Atomic/Molecular Structure and Spectra Chemistry Chemistry and Materials Science Inorganic Chemistry Molecular Optical and Plasma Physics Physical Chemistry Solid State Physics hydration numbers adiabatic compressibility of hydrated complexes adiabatic compressibility
Online Access:	Get full text
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Summary:	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.
ISSN:	0022-4766 1573-8779
DOI:	10.1134/S0022476611030061