@wikipedia
A state of Thermodynamic
Synonym: Fluid Phase Equilibrium = Vapour Liquid Equilibrium (VLE)
A partial case of Phase Equilibrium with two fluid phases staying at Thermodynamic equilibrium.
In other words it's a state of thermodynamic equilibrium between the liquid and gas state of a Fluid Mixture.
The PT diagramDiagram for Pure Substance will see Vapour Liquid Equilibrium (VLE) as a set of points along a smooth curve ending up with a Critical Point
(see Fig. 1).LaTeX Math Inline body (T_c, p_c)
The PT diagramDiagram for Fluid Mixture will see Vapour Liquid Equilibrium (VLE) as a closed area region (also called Vapour Liquid Envelope) bounded by Bubblepoint Curve and Dewpoint Curve with a junction at at Pseudo-Critical Point Point
(see Fig. 2).LaTeX Math Inline body --uriencoded--(T_%7Bpc%7D, p_%7Bpc%7D)
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| Fig. 1. Schematic PT |
| Diagram with Vapour Liquid Equilibrium curve and Critical Point. | Fig. 2. Schematic PT |
| Diagram with Vapour Liquid |
| Envelope and Pseudo-Critical Point. |
See also
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Natural Science / Physics / Thermodynamics / Thermodynamic system / Thermodynamic equilibrium / Phase Equilibrium
[ Pure SubstanceState of matter ][ Pure substance ] [ Mixtures ][ Fluid Mixtures ][ Phase ]
[ Dewpoint Curve ][ Bubblepoint Curve ][ Vapour Liquid Envelope ]
[ Critical Point (Tc, Pc) ][ Сritical Temperature Tc ] [ Critical Pressure (pc) ][ Cricondentherm ][ Cricondenbar ]