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Chemical Reactions

Is the action...

Question

Is the action of dissolving of a substance always an endothermic reaction?

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Solution

No, the action of dissolving of a substance is not always an endothermic reaction. It depends on the nature of substance which is dissolved.

For example, dissolution of sugar in water is an endothermic reaction while dissolution of lime i.e., calcium oxide in water is highly exothermic reaction.

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