Le Chatelier

[danny89]

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When a reaction has 4 gas molecules as reactants and 1 gas molecule on the product side, in order to make the reaction go to the left (reverse), why does it have to run on low pressure?

 

[heylollipop]

4 molecules <--> 1 molecule

When the pressure decreases/is low, the system will try to counteract the decrease in pressure by shifting the reaction to the left to produce more gas molecules, which exerts more pressure, thereby restoring equilibrium.

 

[danny89]

Thanks

 

[bidiboom]

From a distance, Le Chatelier goes for all other points in a reaction the same way as well: from high to low. If you get one side low in pressure for instance, you're implicitly getting the other side "high", from high to low the direction reverses then😉

Remember it from social governance of a society: from rich to poor is good and universe actually is telling this all the time 🙂