Le Chatelier's Principle Question

[Clancyp]

In chad's videos/other resources I have been reading dealing with an equilibrium's response to pressure, it only takes in to consideration moles of gas correct? If pressure rises (volume decreases), equilibrium shifts toward the least amount of moles... only consider the moles of gas correct? Not moles of aqueous? I know solids/liquids are ignored, but the whole equilibrium considers gas and aqueous, but Le Chatelier's response to pressure is only moles gasses correct?

---

Members don't see this ad.

 

[PhansterZ]

That's correct. Only gases have significant volume, therefore significant pressure.

 

[adianadiadi]

Yes, the effect of pressure is only on the gaseous components only. That too when Delta'n' is not equal to zero. If Delta'n' is equal to zero, even though there are gases, no effect of pressure is observed.

See the page Le Chaltelier's principle for more explanation.