Collect. Czech. Chem. Commun. 2008, 73, 372-387
https://doi.org/10.1135/cccc20080372

Topology of Potential Phase Diagrams of Partially Open Condensed System

Petr Voňkaa,*, Jindřich Leitnerb and David Sedmidubskýc

a Department of Physical Chemistry, Institute of Chemical Technology, Prague, 166 28 Prague 6, Czech Republic
b Department of Solid State Engineering, Institute of Chemical Technology, Prague, 166 28 Prague 6, Czech Republic
c Department of Inorganic Chemistry, Institute of Chemical Technology, Prague, 166 28 Prague 6, Czech Republic

Abstract

An analysis of topology of two-dimensional isothermal potential phase diagrams of partially open immiscible condensed systems is presented. The systems share two independent components with surroundings. Chemical potentials (or derived properties such as activities or relative partial pressures) of these two independent components are used as coordinates of such diagrams. Several theorems on topology having practical consequences are proved.

Keywords: Potential phase diagram; Topology; Invariant point; Chemical equilibrium; Thermodynamics; Kuhn-Tucker conditions.

References: 14 live references.