Solids when using ICE  [ENDORSED]

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

Solids when using ICE

Postby Andy Nguyen 1A » Thu Nov 23, 2017 4:21 pm

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
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Joined: Thu Jul 13, 2017 3:00 am

Re: Solids when using ICE

Postby Curtis Tam 1J » Thu Nov 23, 2017 5:24 pm

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

Jingyi Li 2C
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Re: Solids when using ICE

Postby Jingyi Li 2C » Mon Nov 27, 2017 2:40 pm

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
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Re: Solids when using ICE

Postby Varsha Sivaganesh 1A » Mon Nov 27, 2017 3:06 pm

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

Navleen Bajwa 3A
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Re: Solids when using ICE

Postby Navleen Bajwa 3A » Fri Dec 01, 2017 12:02 am

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
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Re: Solids when using ICE

Postby Sarah Brauer » Fri Dec 01, 2017 5:03 pm

Why do you ignore the liquids?

RaviAmin1H
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Re: Solids when using ICE

Postby RaviAmin1H » Fri Dec 01, 2017 5:10 pm

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
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Re: Solids when using ICE

Postby Zane Mills 1E » Fri Dec 01, 2017 9:12 pm

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
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Re: Solids when using ICE  [ENDORSED]

Postby Karan Singh Lecture 3 » Sat Dec 02, 2017 9:46 am

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


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