A teacher makes the following statement. "Gasoline boils at a relatively low temperature (about 150°C). The kerosene is removed at around 200°C, followed by diesel oil at 300°C and fuel oil at around 370°C." What topic is the teacher most likely talking about?
distillation of a mixture
filtration of a pure substance
evaporation of a mixture
sorting of a pure substance

distillation of a mixture

Explanation:

Distillation is a process that is used to separate mixture of different liquid substances based on the boiling points of each of the substances in the mixture.

For example, a mixture containing alcohol (ethanol) and water can be separated by boiling the mixture at a slightly high temperature till all the ethanol evaporates off. Ethanol has a boiling point of while pure water boils at . The ethanol evaporates off at (and can be collected in a chamber) while the water remains.

Hence, the teacher was most likely talking about distillation of a mixture.

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."