Question

The heat of solution of KI is 20.3 kJ/mol.

Answer 1

Since the heat of solution of KI is 20.3 kJ/mol, the answer to the question is a. Exothermic, ΔH is positive

There are two types of chemical reactions namely exothermic and endothermic reaction.

• For exothermic reactions, heat is released. So, ΔH is positive

• For endothermic reactions, heat is absorbed. So, ΔH is negative

Given the heat of solution of KI as 20.3 kJ/mol.

Since it is positive, the reaction is exothermic and  ΔH is positive

Since the heat of solution of KI is 20.3 kJ/mol, the answer to the question is a. Exothermic, ΔH is positive

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