//Example 7.14 clear; clc; //Given R=8.314;//gas constant in J K^-1 mol^-1 Tb=353.1;//temperature in K w2x=0.5;//weight of the solute x in g w2y=0.6;//weight of the solute y in g Mx=128;//molecular mass of solute x in g w1=50;//weight of solvent in g delTx=0.4;//elevation in boiling point due to x in K delTy=0.6;//elevation in boiling point due to y in K //To determine My My=w2y*Mx*delTx/(delTy*w2x);//molecular mass of y in g mol^-1 mprintf('The molecular mass of y is %f g mol^-1',My); //end