Final answer:
Distillation is the principle behind immiscible liquids separating out in layers. It is a physical process that separates homogeneous mixtures into their component substances based on differences in volatility.
Step-by-step explanation:
Distillation is the principle behind immiscible liquids separating out in layers. Distillation is a physical process used to separate homogeneous mixtures (solutions) into their component substances based on differences in volatility. The more volatile component boils first and is condensed back to a liquid, effectively separating it from the less volatile component.