Chemistry / Unit 10 Chem 1780 short lesson, about 20 seconds
Le Châtelier's Principle as a Q-vs-K Consequence
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The idea
Le Châtelier's principle: a stress makes Q no longer equal K, and the system then reacts in whichever direction restores that equality.
In practice
Adding reactant drops Q below K, so the reaction runs forward until Q climbs back to meet K.
Where people slip
"Stress shifts equilibrium" is not an explanation; the shift happens because the stress moved Q away from K.
Your place on the trail
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