7.7 Nonideal solutions (5) If A and B form a continuous set of solutions,but are non-ideal,then XB=1 1.0 ap-1 aB Ideal solution B-YBXB GB RTIndB RT In(YBxB) A B B→ 1.0 Figure 7.9 Plot of activity versus composition for a nonideal solution. Figure 7.1 Fugacity of component)and activity of component i()asa function of mole fraction (for an ideal solution. 3/12/2022 Chapt 9:Solution 11
7.7 Nonideal solutions (5) If A and B form a continuous set of solutions, but are non-ideal, then 3/12/2022 Chapt 9: Solution 11
QA=XA 7.7 Nonideal solutions (6) 个 aB Ideal solution B B今 Figure 7.9 Plot of activity versus composition for a nonideal solution. 个 aB yo OB =YBXB B xB→ GB RTIndB =RT In(YBxB) Figure 7.10 Extrapolation from the dilute region in a plot of activity versus composition for a nonideal solution. 3/12/2022 Chapt 9:Solution 12
7.7 Nonideal solutions (6) 3/12/2022 Chapt 9: Solution 12