Difference Between Evaporation and Distillation

The main difference between evaporation and distillation is that evaporation is a process that involves a change in the state of matter while distillation is a process of separation. Both these processes are used for various purposes. While the vaporisation in evaporation occurs below the boiling point, the vaporisation in distillation occurs at the boiling point. In this article, let us learn more differences between distillation and evaporation.

Evaporation vs Distillation

Evaporation Distillation
Process of changing liquid into gas by applying heat to the liquid in order for the molecules at the surface to easily change into a gas Distillation is a process of acquiring vapour or gas from liquids. This is achieved by heating the liquid to obtain gas and then condensing the obtained gas to relevant liquid form for various purposes.
A slow and gradual process Quick and rapid
Occurs at the surface Doesn’t only occur at the surface
Not a separation technique A separation technique
No formation of liquid bubbles at the boiling point Formation of liquid bubbles at the boiling point
Liquid vapourisation below the boiling point Liquid vapourisation at the boiling point

From the listed differences between distillation and evaporation, we can conclude that the main difference between them lies at the boiling point. Evaporation occurs below the boiling point of a liquid while distillation occurs right at the boiling point. Both the processes depend on certain factors which may be similar but all in all, they are vastly different.

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