\(\Delta P / P ^{\circ}\) is equal to the mole fraction of solute, \(X _2\). It is a colligative property.
$\left[\right.$ આપેલ છે $\left.: {K}_{{f}}\left({H}_{2} {O}\right)=1.86\, {~K}\, {~kg}\, {~mol}^{-1}\right]$
(પાણી માટે $K_f =1.86\, K\, kg\,mol^{-1}$ છે )