Physical Chemistry Nonideal Solutions Models for Nonelectrolyte Activity Coefficients Redlich-Kister equation Margules equation) E G E n+r x3xR0+A1(x1-x)+4(x2-xc)2+…+41(x2-x)y (10.32 B C w(T, P) simple solution model n+nNonideal Solutions simple solution model (10.32) Models for Nonelectrolyte Activity Coefficients [ ( ) ( ) ( ) ] 2 1 1 2 3 − = + − + − + + − +  n B C B C B C n B C B C E E m x x RT A A x x A x x A x x n n G G  Redlich-Kister equation (Margules equation) W (T, P) n n n n G B C E B C + = Physical Chemistry