Question

What is difference between distillation and fractional distillation

Answer 1

Distillation is a separation technique that is used to purify a liquid or a mixture of liquids by heating followed by cooling. When a mixture of liquids is heated, the components which have different boiling points go into gaseous phase at different instances. Condensation of the vapour allows it to be liquefied and thus, different components can be separated. There are several different distillation techniques adapted according to the composition of the liquid mixture.

These are simple distillation, fractional distillation and steam distillation. The main difference between fractional distillation and simple distillation is that simple distillation separate liquids with boiling point gaps of at least 50 degrees whereas fractional distillation separates liquids with closer boiling points

Answer 2

Distillation is the process in which the volatile (liquids that evaporate) is separated from non volatile impurities.

In fractional distillation Liquids that evaporate at different boiling points are separated by means of fractional column.