Predicting the invisible shifts in chemical equilibrium

Le Chatelier's principle: Worked example | Chemical equilibrium | Chemistry | Khan Academy · 7:57 · Video: Khan Academy · Watch at the source

In short: When you disturb a balanced chemical system, it fights back. This video demonstrates how Le Chatelier's principle allows us to predict exactly how matter reacts to external pressures.

The lesson uses a worked example to show how concentrations shift when a reaction vessel experiences specific perturbations. It covers four distinct scenarios: changing the volume of the vessel, altering the amount of solid product, introducing an inert gas, and adding a catalyst.

Designed for first-year high school or college students, the content assumes a foundational understanding of algebra to navigate the chemistry of matter—specifically its composition and reactivity.

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