critical constant

critical constant

[′krid·ə·kəl ′kän·stənt]
(physical chemistry)
A characteristic temperature, pressure, and specific volume of a gas above which it cannot be liquefied.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
The critical constant prediction method [3] was applied to calculating the vapour pressure of heavy oils and bitumen.
Vapor pressure and critical constant prediction method for heavy hydrocarbons.
This can be achieved by using relations involving [T.sub.b], M or critical constants only.
Critical constants and the normal boiling temperatures were taken from Poling et al.
The parameters a22 and b2 of propane were obtained from the critical constants. However, sulpholane decomposes before it reaches its critical temperature.

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