Why does neutralisation of any strong acid in an aqueous solution by a strong base always result in a heat of reaction approx. -57kJ/mol?

1 Answer
Feb 14, 2018

Because its the same reaction.

Explanation:

A monobasic [monoprotic] acid like HCl has one H atom, which fully dissociates to form a hydrogen ion, #H^+#. The strong alkali fully dissociates to forman hydroxide ion #OH^-#, which react to from water. This is the ionic equation for neutralisation and occurs for all strong acid/strong alkali reactions.