Which of the following salt on dissolution in water absorbs heat – InterviewSolution

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1.	Which of the following salt on dissolution in water absorbs heat
Answer» `NH_(4)Cl` `CaO` `Na_(2)SO_(4)` `Na_(2)CO_(3)` Solution :Generally ENTHALPY of solution is positive but here in this question, the three other compounds have -ve enthalpy of solution.

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