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Enthalpy of solution can either be positive or ________

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in Chemistry – Class 11 by (148k points)
Enthalpy of solution can either be positive or ________

(a) negative

(b) does not exist

(c) 0

(d) infinity

The question was posed to me in an interview for job.

I would like to ask this question from Thermodynamics topic in chapter Thermodynamics of Chemistry – Class 11

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Right answer is (a) negative

Easy explanation: Enthalpy change when 1 mole of a substance is dissolved in a large excess of solvent so that on further delusion no appreciable heat change occurs, is known as enthalpy of solution. It can either be positive or negative depending on the reaction, whether it is exothermic or endothermic.

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