Thermophysical Properties of Binary Liquid Systems of Ethanoic Acid, Propanoic Acid, and Butanoic Acid with Benzene or Acetophenone. (27th August 2013)

• Record Type: Journal Article
• Authors: Ahluwalia, R.; Gupta, Ritu; Vashisht, J. L.; Wanchoo, R. K.
• Other Names: Gil-Villegas A. Academic Editor.; Liu B.-T. Academic Editor.; Pellicane G. Academic Editor.
• Is Part Of: ISRN physical chemistry. Volume 2013(2013)
• Publication Date: 2013-08-27
• Subjects: Chemistry, Physical and theoretical -- Periodicals; Chemistry, Physical and theoretical; 35.10 physical chemistry: general; Periodicals; Electronic journals; 541
• DOI: 10.1155/2013/612837
• Languages: English
• ISSNs: 2090-7761

Abstract

Abstract : The density (ρ ), viscosity (η ), and surface tension (σ ) of binary mixtures of carboxylic acids (CAs) (ethanoic acid (EA), propanoic acid (PA), butanoic acid (BA)) + benzene (BEN) or acetophenone (ACT) have been measured at 298.15, 308.15, and 318.15 K. From the experimental results, excess values of molar volume (V E ), viscosity (η E ), Gibb's free energy for the activation of low (G E ), and surface tension (σ E ) were evaluated and fitted to a Redlich-Kister type of equation. The parameter "d " of Grunberg and Nissan expression has also been calculated. From the sign and magnitude of V E, η E, G E, σ E, and "d " values, it is concluded that specific interactions are present in CA+ACT system and these interactions are absent in CA + BEN mixtures. Various viscosity and surface tension models have been used to test the consistency of the data.