Determination of Second Virial Coefficient of Gold by a Modified Berthelot Equation of State

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

Alternative Fuel: Hydrogen and its Thermodynamic Behaviour

“…The obtained values of the second virial coefficients for normal hydrogen, orthohydrogen, parahydrogen are presented in Tables 3 to 5. For comparison, the second virial coefficient of hydrogen and its isomers has been determined by the Berthelot Equation of state [31], van der Waals Equation of state [32], Van Ness & Abbott correlation [33], Yuan Duan correlation [34], McGlashan & Potter correlation [35], McGlashan correlation [36], and Tsonopoulos correlation [37]. The results are also presented in Tables 3 to 5.…”