Vapour Pressure of Liquid Solutions
Vapour pressure can be defined as pressure formed by the vapor of the liquid (or solid) over the surface of the liquid. This pressure is formed in a thermodynamic equilibrium state in a closed container at a certain temperature. Liquid’s evaporation rate is identified by the equilibrium vapor pressure. Vapour pressure increases with the temperature. The boiling point of the liquid is the point when the pressure exerted by surrounding equals to the pressure exerted by vapor. In this chapter, we will study more about the Vapour Pressure on liquids and its characteristics. Vapour pressure of Liquid - Liquid Solutions To evaluate this, we need to take two volatile liquid solutions. Let us name their liquid components as A and B. After placing the volatile liquid with their components in a closed vessel, we find that equilibrium establishes between the liquid phase and vapour phase. Suppose P total is the overall vapour pressure at an equilibrium state and let P ...