Not Including Solids and Liquids

[Sophia Manos 1F]

Why are solids and liquids not included in K calculations?

[Samuel Mushinski 2G]

Because they cannot have concentrations!

[Edriana J Altea 2G]

I agree with the statement above, they don't have concentrations and also their concentrations stay constant during the entire reaction.

[005532550]

Solids and liquids don't really have concentrations so they arent considered in equilibrium. The surface area is relevant for how fast it reacts but for equilibrium it doesnt matter.

[Kainath Kamil Dis 2K]

they can't be compressed or expanded so their concentration is the same throughout

[Parinita Jithendra 2A]

the reason they are not included is because the concentrations do not change during a reaction. They are constant throughout the reaction.

[Tylina Guo 1K]

This is because not only do they not have concentrations in the same way gasses and aqueous solutions do, but the amounts stay constant through the reaction.

[Palig Kechichian 3F]

They're not included in K calculations because solids and liquids don't have concentrations

[Anisa Morales 1L]

As other have mentioned, they cannot be included because they don't have concentration like gas.

[Ellen Brock 2I]

They essentially have constant concentrations because they are unable to be compressed or expanded. This is why we do not consider them in the K equations since they do not change!

[Lynne Xu 3K]

Solids and liquids are pure substances and don't have concentrations.

[taline krumian 1L]

Solids and liquids are not included in K calculations because their effective concentrations stay constant throughout the reaction.

[Yu_Jia_Xu_2I]

Solids and liquids are not included in K expressions because molar concentrations of a pure substance (solid or liquid) does not change in a reaction.

[SanthoshNandakumar3L]

Why are solids and liquids not included in K calculations?

I had a follow up question to this question. If liquids are not included in K calculations, why do we include products/reactants that have (aq) because I thought (aq) is supposed to represent a liquid phase solution?

[Anahi C 2F]

Why are solids and liquids not included in K calculations?

I had a follow up question to this question. If liquids are not included in K calculations, why do we include products/reactants that have (aq) because I thought (aq) is supposed to represent a liquid phase solution?

In my discussion, the TA mentioned that aqueous compounds can be broken into ionic components which is different from solids and liquids since they can't be broken down. I know that it talks more about in section 5G of the textbook.