gen-in-3-4-sentences-explain-le-chatelier-s-principle-state-any-8c85

In 3-4 sentences, explain Le Chatelier's principle. State any key formula.

Le Chatelier's principle states that when a chemical system at equilibrium is subjected to a stress (change in concentration, pressure, or temperature), the system will shift its equilibrium position to counteract that stress and establish a new equilibrium. For example, adding more reactants causes the equilibrium to shift toward products, while increasing temperature for an exothermic reaction shifts the equilibrium toward reactants. **Key formula:** For the equilibrium constant expression: $$K = \frac{[\text{products}]}{[\text{reactants}]}$$ When stress is applied, the system adjusts concentrations to maintain K constant (at constant temperature).