## Solids when using ICE [ENDORSED]

Andy Nguyen 1A
Posts: 56
Joined: Thu Jul 27, 2017 3:00 am

### Solids when using ICE

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
Posts: 105
Joined: Thu Jul 13, 2017 3:00 am

### Re: Solids when using ICE

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

Jingyi Li 2C
Posts: 56
Joined: Fri Sep 29, 2017 7:06 am

### Re: Solids when using ICE

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
Posts: 51
Joined: Thu Jul 13, 2017 3:00 am

### Re: Solids when using ICE

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

Navleen Bajwa 3A
Posts: 20
Joined: Fri Sep 29, 2017 7:06 am

### Re: Solids when using ICE

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
Posts: 17
Joined: Fri Sep 29, 2017 7:06 am

### Re: Solids when using ICE

Why do you ignore the liquids?

RaviAmin1H
Posts: 20
Joined: Thu Jul 13, 2017 3:00 am

### Re: Solids when using ICE

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
Posts: 80
Joined: Fri Sep 25, 2015 3:00 am
Been upvoted: 1 time

### Re: Solids when using ICE

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
Posts: 23
Joined: Fri Sep 29, 2017 7:07 am

### Re: Solids when using ICE  [ENDORSED]

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