JEE Main 2012 Chemistry question
The enthalpy of neutralisation of with HCl is −51.46 kJ and the enthalpy of neutralisation of NaOH with HCl is −55.90 kJ . The enthalpy of ionisation of is
Answer: (4)
Solution
Part of the heat of neutralisation of the weak base is used to ionise it: kJ/mol, option (4).