Condensation of Droplets on Ions and the Generalized Kelvin Equation for an Electrolyte Solution

✍ Scribed by Vı́ctor A. Kuz

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 131 KB
• Volume: 192
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.1997.5011

✦ Synopsis

ARTICLE NO. CS975011 NOTE Condensation of Droplets on Ions and the Generalized Kelvin Equation for an Electrolytic Solution and number of moles of each component of the gas, liquid, and interfacial phases. The variation of this quantity around the equilibrium gives two A thermodynamic description of condensation of droplets on vapor pressure equations, one for a curved interface ( the droplet ) and ions is presented. The Gibbs free energy of noninteracting droplets the other for a plane surface called the state of reference. The resulting in equilibrium with their vapor is a function of the number of equation is compared with some of the semiempirical equations premoles, temperature, pressure, and surface tension G (p(r), T, s, viously obtained ( 15 ) . n g 1 , . . . , n g c ; n l 1 , . . . , n l c ; n l c ; n s 1 , . . . , n s c ). From the variation around equilibrium of G, an equation relating saturation pressure 2. DROPS IN EQUILIBRIUM WITH A SATURATED and droplet size is obtained. The saturation ratio is considerably IONIC VAPOR reduced by adding an ionic salt (the solute). Ion hydration allows the formation of stable droplets in an unsaturated environment.