Abstract
The present study aims to determine the second virial coefficient of gold over a wide range of temperatures from the boiling point to the critical point. A three - parameter modified Berthelot equation of state has been employed to determine the second virial coefficient of gold. The parameters of the equation of state are determined through the critical - point parameters of gold. The temperature -dependence of the second virial coefficient of gold has been investigated. The obtained results are compared with that of the van der Waals equation of state, Berthelot equation of state, Tsonopoulus correlation, and McGlashan correlation. The results of this work agree well with that of other correlations in the vicinity of the critical point. It is also established that gold obeys the single - parameter law of corresponding states. And, the new parameter introduced in the attractive term of the equation of state is found to be a thermodynamic similarity parameter. Doi: 10.28991/HEF-2020-01-04-02 Full Text: PDF
Highlights
Owing to its unique physical properties, gold has numerous scientific and technological applications in electronics, catalysis, biotechnology, spectroscopy, etc
The second virial coefficient is a measures of pairwise intermolecular interaction in substances
Certain technological applications of gold require the knowledge of their high-temperature properties
Summary
Owing to its unique physical properties, gold has numerous scientific and technological applications in electronics, catalysis, biotechnology, spectroscopy, etc. The gold nanoparticles have applications in material science, Nanomedicine, electronics and photonics [1-15]. This fact has led to numerous experimental and theoretical studies on the thermodynamic properties of gold [16-27]. The second virial coefficient is a measures of pairwise intermolecular interaction in substances. Knowledge of the second virial coefficient will enable one to study the intermolecular interaction. The accuracy in the experimental studies on the high temperature properties of the gold is poor due to severe experimental difficulties. Second virial coefficient of gold (Analytical expression for its temperature dependence)
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