Analysis of thermal expansivity and isothermal compressibility of liquid hexane and chloroform

Abstract

In the present paper, we have analysed the pressure dependences of thermal expansivity (a p ) and isothermal compressibility (K T ) for the liquid hexane and chloroform. We have used the formulae based on the pseudospinodal model and the Sanchez et al [1,2] equation of state obtained from the Pade approximation. The thermal expansion coefficient and isothermal compressibility follow a power law function of pressures. It is found that the quantities, a p as well as K T decreases with the increasing pressure. The isothermal compressibility decreases more rapidly in comparison to thermal expansivity. The pressure at which the spinodal condition is satisfied, i.e. a p and K T both tend to infinity, has been found to be a characteristic property of the liquid hexane and chloroform.

Analysis of thermal expansion of NaCl and KCl crystals

“…We have tested our theory on NaCl and KCl solids. The results are compared with available experimental data [7,16,17]. A close agreement between theory and experiment shows the validity of the present work.…”

Ultrasonic study on binary mixture containing dimethylformamide and methanol over the entire miscibility range (0<x<1) at temperatures 303–323K

“…Since liquid mixtures have found applications in medicine, engineering, agriculture and other industrial applications, the study and understanding of thermodynamic and transport properties are more essential [5,6]. Intermolecular interactions in liquid mixtures modify the structural arrangements and hence change the shape of the molecule.…”