The vapour pressure of water is 12.3 kPa at 300 K. Calculate vapour pressure of 1 molal solution of a non-volatile solute in it.

Question

$\begin{array}{1 1}12.08kPa\\10.08kPa\\15.08kPa\\11.08kPa\end{array}$

Comments

How 55.5 comes in place of moles of solvent