It is known that entropy of neutralisation of a strong acid and strong base is -13.68kcal/mol.If enthalpy of neutralisation of `N_2H_4`(hydrazine) wit
It is known that entropy of neutralisation of a strong acid and strong base is -13.68kcal/mol.If enthalpy of neutralisation of `N_2H_4`(hydrazine) with strong acid is equal to -11.68 kcal/mol, then enthalpy of the reaction
`N_2H_4+H_2OtoN_2H_5^+(aq)+OH^(-)(aq)` in Kcal/mol is :
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Correct Answer - `DeltaH`=2 kcal/mol
`DeltaH=2` kcal/mol
Enthalpy of neutralisation is less than-13.68 kcal/mol, because some energy is consumed for ionisation
`:. DeltaH_("ion")=13.68-11.68=2` kcal/mol
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