Abstract
Thermodynamic functions using the coefficient of volume expansion (α) of a system, a number of thermo acoustic and an harmonic parameters such as the isochoric temperature coefficient of internal pressure (X), isochoric temperature coefficient of volume expansivity (X|), the reduced compressibility (β∼), the reduced volume (V∼), isothermal microscopic Gruneisen parameter (Γ), fractional free volume (f) and Sharma parameter (So) can be investigated. The temperature dependence of these parameters gives a basic understanding about the intermolecular interactions in general. These studies also can be applied to a solute in dilute solutions. In the present study these different parameters have been determined using volumetric measurements in the case of a liquid crystal, namely, 4,4′–azoxy anisole (PAA) in dilute solutions at different temperatures. Variations in various parameters with respect to temperature are discussed in the light of the results obtained. The variation of the properties is analyzed and discussed in this article.
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