Scaling Properties of the Surface Tension of Isobutyric-Acid-Water Mixtures

Autor:	W. Fenzl
Rok vydání:	1993
Předmět:	Surface tension Surface (mathematics) chemistry.chemical_compound Materials science chemistry Wetting transition General Physics and Astronomy Thermodynamics Observable Critical exponent Scaling Surface energy Isobutyric acid
Zdroj:	Europhysics Letters (EPL). 24:557-562
ISSN:	1286-4854 0295-5075
DOI:	10.1209/0295-5075/24/7/009
Popis:	Surface tension data of isobutyric-acid-water mixtures, published by Nagarajan, Webb and Widom (J. Chem. Phys., 77 (1982) 5771), are reanalysed. Contrary to the conclusion drawn by these authors, it is shown that the critical part of the surface tension has the scaling properties of the surface free energy in the limit of a small surface field. It is suggested that the same behaviour is found at the non-critical interfaces of many other liquid binary mixtures which have a wetting transition close to the critical endpoint. In these systems the asymptotic scaling behaviour of the surface tension is not observable experimentally. Instead, the surface critical exponent Δ1 can be obtained from surface tension data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::02bfb7a162f0c7c833ad96a42975c9de https://doi.org/10.1209/0295-5075/24/7/009 Zobrazit plný text záznamu