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Thermodynamic Quantities of Surface Formation of Aqueous Electrolyte Solutions: II. Mixed Aqueous Solutions of NaCl and MgCl2

โœ Scribed by Norihiro Matubayasi; Shin-ichiro Yamaguchi; Kazuo Yamamoto; Hideyuki Matsuo

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
82 KB
Volume
209
Category
Article
ISSN
0021-9797

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โœฆ Synopsis

The surface tensions of binary salt mixtures made up from NaCl and MgCl 2 in aqueous solution were measured as a function of concentration and temperature. By analyzing the results, the thermodynamic quantities of surface formation such as entropy (โŒฌs), Helmholtz free energy (โŒฌ f ), and energy of surface formation (โŒฌu) were evaluated. The โŒฌ f of the mixtures positively deviates from the straight line connecting those of NaCl and MgCl 2 aqueous solutions. On the other hand, โŒฌs shows negative deviation from the linear relation.

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