Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 50 (1943) > Annual Issue
Document Type
Research
Abstract
It is well known that the vapor pressure of a solvent liquid is lowered by dissolving a nonvolatile solute in it. The experiments of Wiillner (Pogg. Ann. 110, 56. 1860) indicated that if the solute is nonvolatile, nonelectrolytic, and without chemical action on the solvent, the vapor pressure of the solvent is lowered by an amount proportional to the concentration of the solute; concentration being in this case defined as the ratio of the mass of the solute to the mass of the whole solution, i.e., the mass fraction. Nearly thirty years after Wiillner's work, Raoult (Zeits. Phys. Chem. 2, 353. 1888) gave a more explicit statement of the same law, to the effect that the ratio of the change in vapor pressure to the original vapor pressure of the solvent is equal to the mole fraction of the solute.
Publication Date
1943
Journal Title
Proceedings of the Iowa Academy of Science
Volume
50
Issue
1
First Page
289
Last Page
290
Copyright
©1943 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Weld, Le Roy D.
(1943)
"Simple Proof of Wüllners Vapor Pressure Law,"
Proceedings of the Iowa Academy of Science, 50(1), 289-290.
Available at:
https://scholarworks.uni.edu/pias/vol50/iss1/25