Phase Equilibria
摘要
The topic of phase equilibria is broad. The projects included in this chapter illustrate several aspects of this topic. The relationship between the equilibriumPhase equilibrium vapor pressureVapor pressure over a condensed phase and the enthalpyEnthalpy of the phase change to vapor is summarized in the Clausius–Clapeyron equationClausius-Clapeyron equation. The Clausius–Clapeyron equation is ultimately based on the ideal gas law. Experimental measurements can lead to an equation of similar form, the Antoine equationAntoine equation, with different values for the coefficients. The Antoine equationAntoine equation incorporates the non-ideal characteristics of real substances. These two equations are explored in project PEVPT.