Vapour Pressure of Solutions of Liquids in Liquids

Consider a binary solution of two volatile liquids $\mathrm{A_1}$ and $\mathrm{A_2}$. When the solution is placed in a closed container, both the liquids vaporize. Eventually an equilibrium is established between the vapour and liquid phases, and both the components are present in the vapour phase. The partial pressures of the components are related to their mole fractions in the solution. This …