Abstract
Starting from a discussion of the grand potential change associated with introduction of ions into water, the electrocaloric effect for the system ion–surrounding water is calculated by means of this recent statistical approach to the problem of water in a high electric field. It is concluded that this effect is essential for the hydration of ions, in particular, for the heat of solution of salts. Consistency between the present approach and recent literature results of a density functionals calculation, as well as experimental data for sequential enthalpies of hydration of doubly charged ions in the gas phase, is discussed.
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Danielewicz-Ferchmin, I., Ferchmin, A.R. Ion Hydration and Large Electrocaloric Effect. Journal of Solution Chemistry 31, 81–96 (2002). https://doi.org/10.1023/A:1014861203174
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DOI: https://doi.org/10.1023/A:1014861203174