Thermodynamic properties of liquid mixtures containing 1,3-dioxolane and anilines: Excess molar volumes, excess molar enthalpies, excess Gibb's free energy and isentropic compressibilities changes of mixing

Abstract

Excess molar volumes V E , excess molar enthalpies H E , speeds of sound, u and vapour–liquid equilibrium data of 1,3-dioxolane (i) + aniline or N-methyl aniline or o-toluidine (j) binary mixtures have been measured as a function of composition at 308.15 K. Speeds of sound and vapour–liquid equilibrium data of (i + j) binary mixtures have been utilized to determine isentropic compressibilities changes of mixing, κ S E and excess Gibb's free energy G E . The observed data have been analyzed in term of Graph theory which involves the topology of the mixture constituents. It has been observed V E , H E , κ S E and G E values predicted by Graph theory compare well with their corresponding experimental values.