✦ LIBER ✦

Thermodynamic Quantities of Surface Formation of Aqueous Electrolyte Solutions: III. Aqueous Solutions of Alkali Metal Chloride

✍ Scribed by Norihiro Matubayasi; Kazuo Yamamoto; Shin-ichiro Yamaguchi; Hideyuki Matsuo; Norihiro Ikeda

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 87 KB
Volume: 214
Category: Article
ISSN: 0021-9797
DOI: 10.1006/jcis.1999.6172

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✦ Synopsis

The surface tensions of aqueous salt solutions of LiCl, KCl, and CsCl were measured as a function of concentration and temperature. By analyzing the results, the thermodynamic quantities of surface formation such as entropy (⌬s), Helmholtz free energy (⌬ f ), and energy of surface formation (⌬u) were evaluated. Addition of salts into aqueous solution leads to an increase in ⌬ f but decreases in ⌬s and ⌬u. The variations of ⌬s, ⌬ f, and ⌬u with the change of salt concentration are almost the same for all alkali metal chlorides in spite of their large difference in hydration force.

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