Abstract
Excess molar isentropic compressibilities KS, m E and the deviation u of the speeds of sound u from those in the ideal mixtures u, from speeds of sound values are reported. Measurements have been carried out in order to assess the effects of increasing the alkyl chain length of alkane. Further, we have calculated the ideal and excess internal pressures for the binary mixtures 2-butanol + alknae and some other parameters like heat of vaporization, cohesive energy density, solubility parameter, free volume which have been calculated from the internal pressure are also reported. Various physicochemical parameters like intermolecular free length, acoustic impedance, molecular association, relative association, available volume for the pure components as well as for the binary mixtures have also been calculated along with some of their excess counterparts. Results have been discussed in terms of intermolecular interactions.
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