Chemistry / Unit 10 Chem 1783 short lesson, about 20 seconds
Concentration Stress via Q vs. K
Captions available
The idea
Adding a species lowers Q if in the denominator, or raises Q if in the numerator, and the system shifts to restore Q to K.
In practice
Adding H2 to H2 + I2 ⇌ 2 HI drops Q below K, so the reaction consumes H2, forming HI.
Where people slip
Removing a species reverses the shift adding it causes; predicting the same direction is a slip.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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