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

Excess molar volumes VE, excess molar enthalpies HE, 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 GE. The observed data have been analyzed in term of Graph theory which involves the topology of the mixture constituents. It has been observed VE, HE, κSE and GE values predicted by Graph theory compare well with their corresponding experimental values.