\(\Delta {{\text{T}}_{\text{f}}}{\text{ = i }} \times {\text{ }}{{\text{K}}_{\text{f}}}{\text{ }} \times {\text{ m}}\)
\(\therefore i = \frac{{\Delta {T_f}}}{{{K_f} \times m}} = \frac{{0.00732}}{{1.86 \times 0.002}} = 2\)
[ઉપયોગ : ${R}=0.083\, {~L}\, bar \,{mol}^{-1} \,{~K}^{-1}$ ]
(યુરિયાનો અણુભાર $= 60\, g\, mol^{-1}$)