A phase diagram represents a map of coexisting phase boundaries as affected by the variables of state. A number of phase diagrams have been presented in Chapters VIII and X for developing the thermodynamics of phase equilibria. In this chapter, the relationships between the phase diagrams and the molar Gibbs energy diagrams are presented in detail. We shall limit our discussion to condensed phase diagrams in which pressure is not a variable of state. The removal of the restriction on pressure does not require a special treatment. We shall consider the temperature-composition phase diagrams involving solids and liquids. †
KeywordsPhase Diagram Phase Boundary Isothermal Section Molar Gibbs Energy Extended Portion
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