Browse Questions

If enthalpy of neutralisation of $dil\; HCl$ and $NaOH\; (aq)$ is $x$ then enthalpy of neutralisation of dil HI and $Ba(OH)_2\; (aq)$ is

(a) x/2
(b) 2x
(c) x
(d) Slightly less than x in magnitude

Toolbox:
• Enthalpy of neutralisation of strong acid and strong base is always constant.

Enthalpy of neutralisation of strong acid and strong base is always constant. HI is a stronger acid than HCl while $Ba(OH)_2$ (aq) is a strong base.
So, enthalpy of neutralisation of dil HI and $Ba(OH)_2$ (aq) is x.