Lesson Plan: Le Chatelier’s Principle Chemistry

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to explain the effect of changing the temperature, concentration, or pressure on an equilibrium according to Le Chatelier’s principle.


Students will be able to

  • define Le Chatelier’s principle,
  • predict the qualitative effect of changing either temperature, concentration, or pressure on the position of equilibrium in a reversible reaction.


Students should already be familiar with

  • the effect of a catalyst on the position of an equilibrium,
  • dynamic equilibrium,
  • the particulate model of matter.


Students will not cover

  • applications of Le Chatelier’s principle in industrial settings,
  • the use of square brackets to illustrate the concentration,
  • quantitative measurement or calculations of equilibrium constants.

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