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Title: Temperature dependent study of thermophysical properties of binary mixtures of 1,4-butanediol + picolines
Authors: Srinivasu, J V
Narendra, K
Rao, B Subba
Keywords: Thermodynamic properties;Internal pressure;Excess Gibbs energy of activation;Molecular interactions;1,4-butanediol;Picoline
Issue Date: Nov-2017
Publisher: NISCAIR-CSIR, India
Abstract: The experimental values of densities () and speeds of sound (u) of (1,4-butanediol + α-, orβ- picoline) binary mixtures have been used to calculate the internal pressure (πi), free volume (Vf), enthalpy (H), entropy (Ts), excess internal pressure (πiE), excess free volume (VfE), excess enthalpy (HE), excess free energy (GE) and excess entropy (TsE) at temperatures 303.15, 308.15, 313.15 and 318.15K over the entire composition range. The results have been discussed in terms of molecular interactions due to physical, chemical and structural effects between the unlike molecules. It has been observed that the strength of intermolecular interaction between 1,4-butanediol and picoline molecules is in order ɑ-picoline>β-picoline.
Page(s): 797-805
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Appears in Collections:IJPAP Vol.55(11) [November 2017]

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