Draw a labelled diagram showing the process of fractional distillation.
1. Fractional distillation is used to separate a mixture of two or more miscible liquids in which which have a boiling point difference of less than 25K.
2. Fractional distillation is performed using a fractionating column.
3. Petroleum products are purified using fractional distillation and vapours codense at different temperatures.
Fig: Fractional Distillation