The end point (T_c, p_c) of a Vapour Liquid Equilibrium (VLE) curve above which the liquid and gas state of a pure substance do not have a distinct boundary (see Fig. 1).
It is characterized by critical temperature
T_c and critical pressure
p_c , both being a material property.
Fig. 1. Schematic PT diagram with Vapour Liquid Equilibrium and Critical Point (Tc, pc). |
See also
Natural Science / Physics / Thermodynamics / Thermodynamic system / Thermodynamic equilibrium / Phase Equilibrium / Vapour Liquid Equilibrium (VLE)
[ State of matter ][ Pure substance ] [ Mixtures ][ Fluid Mixtures ]
[ Сritical Temperature Tc ] [ Critical Pressure (pc) ]