Enthalpy of neutralisation of NaOH with H_(2)SO_(4) is -57.3kJ mol^(-1 – InterviewSolution

1.	Enthalpy of neutralisation of NaOH with H_(2)SO_(4) is -57.3kJ mol^(-1) and with ethanoic acid -55.2 kJ mol^(-1). Which of the following is the best explanation of this difference?
Answer» Ethanoic ACID is WEAK acid and thus requires less `NaOH` for neutralisation Ethanoic acid is only partly ionized, neutralisation is THEREFORE incomplete Ethanoic acid is monobasic while `H_(2)SO_(4)` is dibasic Some heat is used to ionize the ethanoic acid completely. Solution :Enthanoic acid is weak acid and it requires so heat for its IONIZATION.

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