Molar excess volumes of ternary mixtures containing ether

Molar excess volumes (VEijk) of 1,3-dioxolane (i) + benzene (j) + cyclohexane (k); 1,3-dioxolane (i) + benzene (j) + n-hexane (k); and 1,3-dioxolane (i) + benzene (j) + n-heptane (k) ternary mixtures have been measured dilatometrically as a function of composition at 298.15 K. The observed data have been analysed in terms of (i) Graph theoretical approach; (ii) Flory's theory; and (iii) Lacombe and Sanche's theory of liquid mixtures. It has been observed that VEijk values predicted by graph theoretical approach compare better with the corresponding experimental values than with the VEijk data predicted by other approaches.Key words: molar excess volumes, molar volume interaction parameters, connectivity parameter of third degree 3ξ.

Thermodynamic properties of ternary mixtures containing nitrobenzene

Molar excess volumes, [Formula: see text], and molar excess enthalpies, [Formula: see text], of nitrobenzene (i) + benzene (j) + cyclohexane (k), nitrobenzene (i) + benzene (j) + n-hexane (k), and nitrobenzene (i) + benzene (j) + n-heptane (k) ternary mixtures have been determined dilatometrically and calorimetrically as a function of composition at 298.15 K. The data have been analyzed in terms of (i) the graph-theoretical approach and (ii) Flory's Theory. It has been observed that [Formula: see text], data calculated by graph theoretical as well as Flory's approach compare well with their corresponding experimental values. Keywords: molar excess volumes, molar excess enthalpies, specific interactions, molar volume interaction parameter, molar interaction enthalpy parameter.