Simple Demonstration of Vapor Pressure Lowering

• Autores: Wayne H. Pearson
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 90, Nº 8, 2013, págs. 1042-1043
• Idioma: inglés
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• Resumen

  • : A simple, qualitative demonstration of the vapor pressure lowering of aqueous solutions is presented. The demonstration consists of comparing two liquids, deionized water and a salt solution, in closed, glass containers. The di?erence in the degree of condensation inside of the two containers illustrates the di?erence in the vapor pressures of the two systems