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  4. Enthalpy of neutralisation of HCl by NaOH is -55.84 kJ/mol and by NH4OH is -51.34 kJ/mol . The enthalpy of ionization of NH4OH is:-

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Q. Enthalpy of neutralisation of $HCl$ by $NaOH$ is $-55.84\,kJ/mol$ and by $NH_{4}OH$ is $-51.34\,kJ/mol$ . The enthalpy of ionization of $NH_{4}OH$ is:-

NTA AbhyasNTA Abhyas 2022

Solution:

$ΔHion:\left|ΔH_{strong}\right|-\left|ΔH_{weak}\right|$
$=55.84-51.34$
$=4.5\,kJ/mol$