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

摘要

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, κSE 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, κSE and G~E values predicted by Graph theory compare well with their corresponding experimental values.