Question

Enthalpy of involves of all strong acids and strong bases has the same value because:

• A. neutralization leads to the formation of a salt and water
• B. strong acid and bases are iconic substance
• C. acids always furnish $H^{+}ions$ and bases always furnish $O{H}^{-}ions$
• D. the net chemical change involves the combination of $1mol$ of $H^{+}$ ions and $1moleO{H}^{-}$ ions to form water.

Answer 1

The correct option is A neutralization leads to the formation of a salt and water

$HCl+NaOH\to NaCl+H_{2}O$

$\Delta H_{neutralization}=-13.7Kcal$

Because when strong acid reacts with a strong base, then there is a formation of salt and water and hence, enthalpy of neutralization is same.