Question

Draw a labelled diagram showing the process of fractional distillation.

Answer 1

1. Fractional distillation is used to separate a mixture of two or more miscible liquids in 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 condense at different temperatures.

Fig: Fractional Distillation