Thermodynamic Stability and Critical Point in Simple Fluids and Ferromagnets

1977 ◽  
Vol 15 (5-6) ◽  
pp. 355-365
Author(s):  
L de Cesare
Keyword(s):  
Critical Point ◽  
Thermodynamic Stability ◽  
Simple Fluids

Comprehensive theory of simple fluids, critical point included

1989 ◽  
Vol 62 (25) ◽  
pp. 2981-2984 ◽  
Author(s):  
A. Parola ◽  
A. Meroni ◽  
L. Reatto
Keyword(s):  
Critical Point ◽  
Simple Fluids ◽  
Comprehensive Theory

Electron mobility in simple fluids near the critical point

1973 ◽  
Vol 27 (2) ◽  
pp. 297-309 ◽  
Author(s):  
J. Lekner ◽  
A. R. Bishop
Keyword(s):  
Critical Point ◽  
Electron Mobility ◽  
Simple Fluids

scholarly journals Physical Theory of Fluid Interfaces Near the Critical Point

1972 ◽  
Vol 25 (4) ◽  
pp. 367 ◽  
Author(s):  
KW Sarkies ◽  
P Richmond ◽  
BW Ninham
Keyword(s):  
Free Energy ◽  
Critical Point ◽  
Physical Theory ◽  
Scaling Laws ◽  
Continuum Theory ◽  
The Self ◽  
Fluid Interfaces ◽  
Fluid Interface ◽  
Simple Fluids ◽  
Energy Of Interaction

A continuum theory of surfaces is developed for fluids near their critical points. The free energy of the fluid interface is considered to consist of two terms: the self free energy of inhomogeneity and an energy of interaction across the interface due to van der Waals forces. This second term is computed via the principles of Lifshitz theory and gives a physical basis to Widom's modification of the Cahn?Hilliard theory of surfaces. The scaling laws as derived by Widom are recalculated, and several differences from the original laws emerge. The theory permits calculation of absolute values of surface tensions and interface widths near the critical point from experimental dielectric and free energy data. Furthermore, the fluids considered are not necessarily simple fluids where only pairwise forces are important.

A new one-parameter correlation for the surface tension of saturated liquids

2019 ◽  
Vol 33 (25) ◽  
pp. 1950294 ◽  
Author(s):  
Qiuju Chen ◽  
Jianxiang Tian ◽  
Hua Jiang
Keyword(s):  
Carbon Dioxide ◽  
Surface Tension ◽  
Critical Point ◽  
Triple Point ◽  
High Accuracy ◽  
The Other ◽  
Simple Fluids ◽  
Parameter Correlation ◽  
New Correlation ◽  
Better Than

In this paper, we proposed a new one-parameter correlation for the surface tension of saturated fluids. This new correlation requires only the critical temperature as inputs and is tested by using the REFPROP data for 72 saturated fluids including refrigerants, alkanes and some other simple fluids such as argon, carbon dioxide, etc. It is found that this correlation well stands in the whole temperature range from the triple point to the critical point with high accuracy for 59 liquids with average absolute deviations (AADs) less than 5%, 50 liquids with AADs less than 3%, and 13 liquids with AADs less than 1%. These results are clearly better than those of the other available correlations. This correlation can be used to estimate the value of the surface tension of the corresponding liquids at any temperature point from the triple point to the critical point.

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