Structural Biochemistry/Phase Equilibria

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More than one phases coexist at the same temperature and pressure.


K-values is a phase-equilibrium ratio, for vapor-liquid systems,

is the mole fraction of a species in vapor phase, and is the mole fraction of a species in liquid phase.

For ideal solutions,

K-values can be used for calculating bubble and dew points.


Seader, J. D., and Ernest J. Henley. Separation Process Principles. Hoboken, NJ: Wiley, 2006. Print.