Final answer:
Distillation separates substances based on boiling point differences by vaporizing the more volatile component first, then condensing it, thereby isolating it from less volatile components.
Step-by-step explanation:
Distillation enables a fast and simple separation of a target product from residual components like 2-methyl-2-butanol by exploiting the difference in their boiling points. When the mixture is heated, the substance with the lower boiling point vaporizes first and is then condensed into a separate container, leaving behind the substance with the higher boiling point. This process is particularly useful in separating mixtures of liquids in both laboratory and industrial settings, such as the refining of crude petroleum into various products.