fugacity

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fu·gac·i·ty (f),

(fū-gas'i-tē),
The tendency of the molecules in a fluid, as a result of all forces acting on them, to leave a given site in the body; the escaping tendency of a fluid, as in diffusion, evaporation, etc.
[L. fuga, flight]

fugacity

/fu·gac·i·ty/ (fu-gas´it-e) a measure of the escaping tendency of a substance from one phase to another phase, or from one part of a phase to another part of the same phase.

fu·gac·i·ty

(f) (fyū-gas'i-tē)
The tendency of the molecules in a fluid, as a result of all forces acting on them, to leave a given site in the body; the escaping tendency of a fluid, as in diffusion, evaporation, and the like.
[L. fuga, flight]
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References in periodicals archive ?
Values for the fugacity coefficient [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] are similar to those previously observed (Morris et al.
i] is fugacity coefficient of component i in the mixture and Z is given in Equation (1).