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.
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| Fig. 1. Schematic PT diagram with Vapour Liquid Equilibrium and Critical Point (Tc, pc). |
See also
Natural Science / Physics / Thermodynamics / Thermodynamic system
[ Pure Substance ]
[ Сritical Temperature Tc ] [ Critical Pressure (pc) ]