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Relationship of Triple Point Solid Volume with Thermo‐Acoustic Parameters and Structural Distortion in Quasi‐Spherical Molecular Liquids by the Corresponding State Correlations
Author(s) -
Sharma B. K.
Publication year - 1991
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221670213
Subject(s) - distortion (music) , triple point , volume (thermodynamics) , molar volume , thermodynamics , intermolecular force , critical point (mathematics) , materials science , simple (philosophy) , chemistry , physics , mathematical analysis , mathematics , molecule , amplifier , optoelectronics , organic chemistry , cmos , philosophy , epistemology
The significance and the validity of the idea of corresponding state correlations is tested by obtaining unique values for reduced triple point solid volume, Boyle temperature, critical state nearest‐neighbour number, and intermolecular separation, using critical volume and temperature as reduction parameters. The calculated values show very close agreement with experimental values for simple, non‐polar, spherical liquids. An attempt is made to obtain an expression for liquid structure distortion parameter in terms of the reduced molar volume of the liquid. It is shown that the effect of distortion parameter on structural variations with regard to change in nearest‐neighbour number with temperature in liquid argon is significant. The results are used to develop a relationship between the thermo‐acoustic parameters on the basis of liquid structure distortion and the hard‐sphere model with attractive interactions in simple liquids.