Abstract

The present work reports measurement and estimation of heat capacities, CP and excess heat capacities, (CPE)ijk (using CP data) of 1-methylpiperidine (i) + pyrrolidin-2-one (j) + cycloheptanone or cyclohexanone or cyclopentanone (k) mixtures at several temperatures. (CPE)ijk data have been correlated with the mole fraction of the constitutional molecule (via Redlich-Kister polynomial) to commute standard deviations and ternary coefficients. (CPE)ijkdata have also been examined in terms of Graph and Flory's theories. It has been perceived that (CPE)ijkvalues computed using Graph theory compare well with their corresponding experimental values. Further, (CPE)ijk data obtained by Flory's theory for 1-methylpiperidine (i) + pyrrolidin-2-one (j) + cyclopentanone (k) mixtures are of the same sign.

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