(a) Draw P-T and P-V phase diagrams, identify regions of various phases, and show the constant-pressure vaporization process depicted in Figure 2-5 of Text (p.52) on these diagrams. (b) Apply Gibbsâ phase rule in the liquid, liquid-vapor, and vapor regions of the diagram in (a) above and identify the number of degrees of freedom.
process below the critical pressure Liquld Gas Liquid Gas Gas Liquid Coll heated Cell heated Cell heated Hg removed Hg removed Hg removed so that so that so that pressure remains pressure remains pressure remains Constant cans tant constant gas and gas and Cell tull cell tu of gas of liquid liquid present liquid present temperature T3 temperature T temperature T temperature Ta equais T below Tv above T Fig. 2-5. Vaporization of a pure substance at constant pressure.
