Solids when using ICE [ENDORSED]

[Andy Nguyen 1A]

When we calculate the equilibrium constant I know that we ignore solids and liquids. Do we also do this when using the ICE method? Thank you!

[Curtis Tam 1J]

I believe so since you don't have any concentration of solids in the first place.

[Jingyi Li 2C]

When using the ICE method, you ignore the concentrations for solids and pure liquids. But you use their stoichiometric coefficients to set up the equation.

[Varsha Sivaganesh 1A]

So the only things that you would use for the ICE table are aqueous and gases?

[Navleen Bajwa 3A]

Yes. You only use the concentrations of aqueous and gases in the ICE method. Therefore, you ignore the concentrations of the solids and liquids.

[Sarah Brauer]

Why do you ignore the liquids?

[RaviAmin1H]

Liquids are not compressed by pressure, so it does not change the speed of the reaction. That is why it is not in the equilibrium constant equation.

[Zane Mills 1E]

This is also why you don't include solids in ICE tables. Although they may be mentioned in a rxn, when determining Kc for a given rxn, the concentrations of non aqueous/gaseous compounds is completely irrelevant (as mentioned above). A good example of this is found at https://chem.libretexts.org/Core/Physic ... Ice_Tables where they walk you through the process and give you more in depth reasoning behind equilibrium calculations.

[Karan Singh Lecture 3]

We do not use solids and liquids in the ICE method.