The enthalpy of neutralisation of oxalic acid by a strong base is -25.4 kcal/mol. The enthalpy of neutralisation of strong acid and strong base is `-13.7 kcal eq^-1`. What is the enthalpy of dissociation (in kcat `moL^-1`) of oxalic acid ?

Explanation

Oxalic acid is dibasic acid hence expected heat of neutralisation will be= `2 xx 13.7` Kcal
The dissociation energy of oxalic acid= `2xx 13.7 - 25.4`