‘The solubility of a solid in a liquid is significantly affected by temperature changes. Solute + Solvent ⇌ Solution. The system being in a dynamic equilibrium must follow Le-chatelier’s principle. Considering the Le-chatelier’s principle which of the following is correct?

‘The solubility of a solid in a liquid is significantly affected by temperature changes. $Solute + Solvent ⇌ Solution.$ The system being in a dynamic equilibrium must follow Le-chatelier’s principle. Considering the Le-chatelier’s principle which of the following is correct?

A
${ΔH}_{sol} > 0; solubility ↑; temperature ↓$
B
${ΔH}_{sol} < 0; solubility ↓; temperature ↑$
C
${ΔH}_{sol} > 0; solubility ↓; temperature ↑$
D
${ΔH}_{sol} < 0; solubility ↑; temperature ↑$

Solution:

According to Le-chateliers principle, for an exothermic reaction $(ΔH < 0)$ increase in temperature decreases the solubility.

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