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    Why do we omit solids and liquids in the equilibrium expression? I know it has something to do with concentrations, but I don't get it.
    And for homogeneous equilibrium, why are the liquids and solids included in the equilibrium constant, when they aren't in heterogeneous equilibrium?


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    solids and liquids are constants as their concentrations don't change through out the reaction
    homogenous equilibria they aren't included in homogenous either
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    (Original post by SAMHANLEY88)
    solids and liquids are constants as their concentrations don't change through out the reaction
    homogenous equilibria they aren't included in homogenous either
    But what about this?

    It was included in both my textbook and https://www.chemguide.co.uk/physical/equilibria/kc.html
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    (Original post by Mme_Bonii)
    But what about this?

    It was included in both my textbook and https://www.chemguide.co.uk/physical/equilibria/kc.html
    ok I was taught by teachers otherwise so I'm gonna assume it's because if they're all liquids they're all in a mixture so their concentration is a fraction of the mixture so when the reactants are used up then the concentration in relation to other reactants and products changes (I assume)
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    (Original post by Mme_Bonii)
    But what about this?

    It was included in both my textbook and https://www.chemguide.co.uk/physical/equilibria/kc.html
    i didn't explain that well
    the reason liquids and solids are emitted when there are aqueous or gases is because their change is negligible
    whereas compared to eachother they become significant
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    (Original post by SAMHANLEY88)
    i didn't explain that well
    the reason liquids and solids are emitted when there are aqueous or gases is because their change is negligible
    whereas compared to eachother they become significant
    Thank you so much!
 
 
 
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