Question

Enthalpy of neutralization

Answer 1

The enthalpy of neutralization (ΔHn) is the change in enthalpy that occurs when one equivalent of an acid and one equivalent of a base undergo a neutralization reaction to form water and a salt. It is a special case of the enthalpy of reaction. It is defined as the energy released with the formation of 1 mole of water.

Answer 2

It is the enthalpy change during the neutralization of 1 equivalent acid and 1 equivalent base. Or

Enthalpy change during the formation of 1 mol H2O (l) during the neutralization of acid and base.

It is exothermic.