Thermodynamic study on the sublimation of 1,2-diphenylethane and of 3-phenylpropiolic acid

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Monte, MJS (Author) FCUP; Hillesheim, DM (Author) Other

Journal

Title: Journal of Chemical Thermodynamics

Vol. 33

Pages: 849-857

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 7 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-000-TQX

DOI: 10.1006/jcht.2000.0761

Abstract (EN): The Knudsen mass-loss effusion technique was used to measure the vapour pressures at different temperatures of the following crystalline compounds: 1,2-diphenylethane (bibenzyl), between T = 289.16 K and T = 303.20 K, and of 3-phenylpropiolic acid between T = 329.15 K and T = 343.15 K. From the temperature dependence of the vapour pressure, the standard molar enthalpies of sublimation at the mean temperature of the experimental range were derived by the Clausius-Clapeyron equation. From these results the standard, p degrees = 10(5) Pa, molar enthalpies, entropies, and Gibbs energies of sublimation at T = 298.15 K, were calculated: [GRAPHICS] (C) 2001 Academic Press.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9