Modification of Expressions of Colligative Properties

The expressions of colligative properties mentioned earlier for nonelectrolytes are to be modified so as to make them applicable for electrolyte solutions. The modified equations are:

i. $\quad \Delta P = i\,P_1^0 x_2 = i\,\dfrac{W_2 M_1}{M_2 W_1} \times P_1^0$

ii. $\quad \Delta T_b = i\,K_b m = i\,\dfrac{1000\,K_b W_2}{M_2 W_1}$

iii. $\quad \Delta T_f = i\,K_f m = i\,\dfrac{1000\,K_f W_2}{M_2 W_1}$

iv. $\quad \pi = i\,MRT = i\,\dfrac{W_2 R T}{M_2 V}$ …