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Lesson Plan: Fractional Distillation of Air Chemistry
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to describe the properties of gases in air and describe their separation by low-temperature fractional distillation.
Objectives
Students will be able to
- recall the current composition of clean, dry air,
- compare different physical properties of the gases that make up air,
- explain why fractional distillation can separate the gases in air,
- describe the processes involved in the fractional distillation of air,
- recall the movement of different fractions in the fractionating column,
- list uses of the components of air based on their physical properties.
Prerequisites
Students should already be familiar with
- the separation of other mixtures, such as crude oil, by fractional distillation,
- physical and chemical processes,
- changes between different states of matter.
Exclusions
Students will not cover
- reactions involving the gases in air.
