Raoult's Law

Raoult's Law describes the vapor pressure of an ideal solution. According to this law, the partial vapor pressure of each component in a mixture is directly proportional to its mole fraction in the mixture. In this formula, P denotes the partial vapor pressure of the component, P₀ is the vapor pressure of the pure solvent, and X₁ is the mole fraction of the solvent in the solution. It is particularly helpful for predicting the boiling and freezing points of a solution and for calculating the total vapor pressure of mixtures in chemical engineering and thermodynamics.