Raoult's law for a solution containing volatile components - The partial vapour pressure of each volatile components of the solution is directly proportional to mole fraction present in solution.
The ideal solutions have characteristics to obey Raoult's law for the following conditions.
1. The enthalpy of mixing of the pure components to form the solution is zero, ∆‌mix ‌H=0. That means no heat is absorbed or released during the mixing of the two pure components.
2. The volume of the mixing also be zero, ∆‌mix ‌V=0. That means the total volume of the solution is equal to the sum of the volume of the two components.
3. In pure components, A and B, the intermolecular attractions between solute-solute interactions and solvent-solvent interaction are almost similar to the solute-solvent interaction.