Q. The joint process of vapourisation and condensation is called :
Answer: Distillation
Notes: Condensation is the change from a vapor to a condensed state (solid or liquid); while, vaporization occurs when a chemical or element is converted from a liquid or a solid to a gas. Distillation is the technique of heating a liquid to create vapor which is collected when cooled separate from the original liquid. It is the joint process of both vaporization and condensation.