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IJC-A Vol.46A [2007] >
IJC-A Vol.46A(12) [December 2007] >

Title: Excess transport properties of binary mixtures of methanol and pyridine through ultrasonic measurements at different temperatures
Authors: Rao, G V Rama
Sarma, A Viswanatha
Ramachandran, D
Rambabu, C
Issue Date: Dec-2007
Publisher: CSIR
Abstract: The viscosities, densities and ultrasonic velocities of binary liquid mixtures of methanol with piperidine and morpholine and pyridine with piperidine and morpholine have been determined at 303.15 to 318.15K over the entire composition range. These data have been utilized to estimate the excess free volume, excess internal pressure, excess enthalpy, excess velocity, excess acoustic impedance and excess Gibb’s free energy of activation of flow. The results obtained have been discussed in the light of existing theories of molecular interaction involved and chemical constitution of the liquid components. Analysis of these parameters indicates that there are intermolecular interactions among components of the binary mixtures that lead to possible hydrogen bond formation (of the type N…H-O) between unlike molecules.
Page(s): 1972-1978
ISSN: 0376-4710
Source:IJC-A Vol.46A(12) [December 2007]

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