Distillation is a process whereby a mixture of liquids having different vapor pressures is separated into its components. Since distillation depends on the different vapor pressures of the components ...Distillation is a process whereby a mixture of liquids having different vapor pressures is separated into its components. Since distillation depends on the different vapor pressures of the components to be separated, let's first consider the vapor pressure vs. composition plots for a hypothetical mixture at some arbitrary temperature at which both liquid and gas phases can exist, depending on the total pressure.
