Concept information
Terme préférentiel
critical point
Définition(s)
- In thermodynamics, a critical point (or critical state) is the end point of a phase equilibrium curve. The most prominent example is the liquid–vapor critical point, the end point of the pressure–temperature curve that designates conditions under which a liquid and its vapor can coexist. At higher temperatures, the gas cannot be liquefied by pressure alone. At the critical point, defined by a critical temperature Tc and a critical pressure pc, phase boundaries vanish. Other examples include the liquid–liquid critical points in mixtures, and the ferromagnet–paramagnet transition (Curie temperature) in the absence of an external magnetic field. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Critical_point_(thermodynamics))
Concept(s) générique(s)
Synonyme(s)
- critical state
Traductions
-
français
-
état critique
URI
http://data.loterre.fr/ark:/67375/MDL-FD3QFLM6-8
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