Question

Enthalpy of neutralisation of a strong acid by strong base:
(1) has a constant value of $-57.32kJ$
(2) is independent of the nature of strong acid and strong base
(3) results in heat change accompanied by the reaction
$H^{+}\left(aq\right)+{OH}^{-}\left(aq\right)\to H_{2}O$

Which of the above statements is\are correct?

• A. 1 and 2
• B. 1 and 3
• C. 1 only
• D. 1,2 and 3

Answer 1

The correct option is D 1,2 and 3

The enthalpy change that takes place when 1 g-equivalent of an acid (or base) is neutralized by 1 g-equivalent of a base (or acid) is called Enthalpy of Neutralization. The enthalpy of neutralization of a strong acid & strong base is constant equal to $-57.32KJ$. It is dependent of the nature of strong acid & strong base. It results in the heat change accompanied by the reaction:

$H^{+}\left(aq\right)+{OH}^{-}\left(aq\right)\to H_{2}O$