Thermodynamics of Mixtures of Aromatic Hydrocarbons with Alkanols Studied by Light Scattering

Autor:	Petr Munk, Julius Pouchlý, Weizhuang Cheng, Anwei Qin
Rok vydání:	2001
Předmět:	Enthalpy Thermodynamics General Chemistry Ethylbenzene Toluene Light scattering Gibbs free energy chemistry.chemical_compound symbols.namesake chemistry symbols Molecule Methanol Benzene
Zdroj:	Collection of Czechoslovak Chemical Communications. 66:1011-1037
ISSN:	1212-6950 0010-0765
DOI:	10.1135/cccc20011011
Popis:	Measurement of light scattering of mixtures of aromatic hydrocarbons (benzene, toluene, ethylbenzene) and alkanols (methanol, ethanol, propan-1-ol, butan-1-ol, pentan-1-ol) having sufficiently different refractive indices, produced rather reliable thermodynamic data. From these data it was possible to deduce the composition dependence of the change in Gibbs energy of mixing ∆Gmix. These dependences were measured for eleven binary mixtures. A model of alcohol molecules forming linear aggregates which are in equilibrium was developed and used for interpretation of the data. All ∆Gmix data for the eleven mixtures as well as the ∆Hmix data obtained for these mixtures from literature could be interpreted using just two values that characterized the Gibbs energy and enthalpy of the formation of hydrogen bonds. The analysis also yielded plausible results concerning the contact interactions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57e46772ced43e4bbf9c2c2de23dabe7 https://doi.org/10.1135/cccc20011011 Zobrazit plný text záznamu