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On This Day – September 17 : French chemist Henri Louis Le Chatelier died on this day in 1936


He is best known for developing Le Chatelier’s principle, which predicts the effect of changing conditions (temperature, pressure, and concentration of reaction components) on the equilibrium of a chemical reaction. His principle says that a system will shift the equilibrium to counteract the change.

Type of Activity

group work, working independently




What happened today in chemistry? Explore 366 days of chemistry history at On This Day in Chemistry, an RSC Learn Chemistry site.