FIRST APPEARANCE OF THE OSTWALD-FREUNDLICH EQUATION.

HELMHOLTZ, ROBERT VON.

Untersuchungen über Dämpfe und Nebel, besonders über solche von Lösungen.

Leipzig, Johann Ambrosius Barth, 1885.

8vo. As extracted. In "Annalen der Physik und Chemie" 263, no 4. Entire issue offered. Traces from old back-strip. Internlly fine and clean. [Helmholtz's paper:] Pp. 508-543. [Entire issue:] Pp. 481-680 + 3 folded plates. 

First appearance of Helmholtz’s dissertation in which the German physicist derived the Ostwald–Freundlich equation and showed that Kelvin's equation could be transformed into the Ostwald–Freundlich equation. 
The German physical chemist Wilhelm Ostwald derived the equation apparently independently in 1900; however, his derivation contained a minor error which the German chemist Herbert Freundlich corrected in 1909. 
The Ostwald–Freundlich equation governs boundaries between two phases; specifically, it relates the surface tension of the boundary to its curvature, the ambient temperature, and the vapor pressure or chemical potential in the two phases.

Order-nr.: 60099