Relative Lowering of Vapor Pressure is a colligative property.

• Statement: For a dilute solution containing a non-volatile solute, the relative lowering of vapor pressure ($\frac{P^0-P_s}{P^0}$) is equal to the Mole Fraction of the solute ($X_{solute}$).
• This indicates that the effect depends solely on the number of solute particles present in the solution, regardless of their chemical identity or nature.