Question

While diluting an acid, adding water to the acid is an exothermic process resulting in release of so much heat. Type 1 for true and 0 for false.

Answer 1

Hint: Endothermic reactions usually involve the formation of chemical bonds via the absorption of heat from the surroundings.

Complete step by step answer:
Heat is released when strong acids are mixed with water. If you add water to acid, you form an extremely concentrated solution of acid initially and the solution may boil very violently, splashing concentrated acid. If you add acid to water, the solution that forms is very dilute and the small amount of heat released is not enough to vaporize and spatter it. When acid is poured into water, it flows down the flask and mixes much better, so no boiling occurs. Addition of water to acid for dilution forms an extremely concentrated solution of acid initially. So much heat is released that the solution may boil very violently, splashing concentrated acid out of the container and all this because the reaction is exothermic. The reason this occurs is due to the large amount of energy released in the hydration reaction of concentrated ions. So, it is always safer to add acid to water dropwise with constant stirring and not water to acid directly.
Therefore, we can conclude that the given statement is true.

Hence, the correct answer to this question is 1.

Note:
Heat does not always come from dissociation, as the dissociation of acids, bases, and salts always consume energy. The energy is released from subsequent hydration, and the release may be high, especially if $H^+$ and $OH^-$ ions are hydrated.