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    Enthalpy change is negative so increasing the temperature would shift the equilibrium to the left. So this increases the amount of solid that can dissolve

    The mark scheme however says decrease can anyone explain why,


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    You are correct in saying that the equilibrium will shift to the left because its shifting in the endothermic direction. However this does not mean that there is an increase in the amount of solid that can dissolve; it means less of Ca2+(aq) and 2Cl-(aq) will be produced, hence less will be dissolved.
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    (Original post by jessedoell)
    You are correct in saying that the equilibrium will shift to the left because its shifting in the endothermic direction. However this does not mean that there is an increase in the amount of solid that can dissolve; it means less of Ca2+(aq) and 2Cl-(aq) will be produced, hence less will be dissolved.
    Thanks!


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