The van der Waals idea of pseudo associations and the critical compressibility factor

Autor: Bakai, O.
Rok vydání: 2020
Předmět:
Zdroj: Condens. Matter Phys., 2020, vol. 23, No. 1, 13603
Druh dokumentu: Working Paper
DOI: 10.5488/CMP.23.13603
Popis: The dimensionless value of critical compressibility factor in the van der Waals theory of gas-liquid critical point is a universal constant, $Z_\text{c} = 0.375$. Experimentally measured values of this quantity for simple fluids are considerably smaller than the theory prediction. Van der Waals once assumed that this discrepancy can be removed by taking account of the impact of the molecular pseudo-associations on the fluid criticality but he did not complete a proper modification of his theory following up on this idea. The communication is devoted to the filling of this gap.
Comment: 5 pages, 1 table
Databáze: arXiv