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solids and liquids

Posted: Sun Jan 12, 2020 10:18 pm
by Karina Kong 2H
Why aren't solids and liquids included in the equilibrium equation?

Re: solids and liquids

Posted: Sun Jan 12, 2020 10:22 pm
by Ariana Iranmahboub1G
Since solids and liquids cannot affect the reaction at equilibrium they are not included in the equilibrium expression.

Re: solids and liquids

Posted: Sun Jan 12, 2020 10:22 pm
by Jiyoon_Hwang_2I
Solids and liquids are pure and they don't affect the reactant amount so they are omitted from the equilibrium expression. Also, the concentrations of these pure solids and liquids are calculated by dividing their density by molar mass and their density remains constant regardless of the amount of pure solid or liquid so it will not affect the equilibrium expression.

Re: solids and liquids

Posted: Sun Jan 12, 2020 10:23 pm
by ASetlur_1G
Solids and liquids don't affect the reactant amount at equilibrium. They don't change in concentration (solids don't really even have "concentrations") so they're not included.

Re: solids and liquids

Posted: Sun Jan 12, 2020 11:37 pm
by Ashley Nguyen 2L
Solids and liquids are not included in the K calculation because K is calculated using concentrations. Solids and liquids do not have concentrations, so they cannot affect the equilibrium.

Re: solids and liquids

Posted: Sun Jan 12, 2020 11:45 pm
by Vivianvelazquez_1J
solids and liquids aren't included in the equilibrium equation because the molar concentration of a pure substance (liquid or solid) does not change in a reaction.