Comments on Van der Waals supercritical fluid: Exact formulas for special lines [J. Chem. Phys. 135, 084503 (2011)]
I. H. Umirzakov
TL;DR
This paper corrects the equations for the speed of sound along Widom lines in the supercritical van der Waals fluid, clarifying previous inaccuracies and providing exact formulas for these special thermodynamic lines.
Contribution
It provides the corrected and exact formulas for the speed of sound along Widom lines in the supercritical van der Waals fluid, addressing prior inaccuracies.
Findings
Corrected equations for the speed of sound on Widom lines
Clarified the thermodynamic behavior of supercritical van der Waals fluid
Enhanced understanding of supercritical fluid properties
Abstract
The equations for Widom lines for the supercritical van der Waals fluid were considered in the paper J. Chem. Phys. 135, 084503 (2011). But the equations for the speed of sound and its special Widom line were incorrect. The correct equations are obtained.
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Taxonomy
TopicsPhase Equilibria and Thermodynamics · Material Dynamics and Properties · Catalysis and Oxidation Reactions