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Given that the data for neutralization o...

Given that the data for neutralization of weak acid (HA) and strong acid is :
`HA+OH^(-)toA^(-)+H_(2)O`, `DeltaH=-41.80 kJ`
`H^(+)+OH^(-)toH_(2)O`, `DeltaH=+ -55.90 kJ`
The enthalpy of dissociation of weak acid would be

A

`-97.20 kJ`

B

`+97.70 kJ`

C

`-14.10 kJ`

D

`14.10 kJ`

Text Solution

Verified by Experts

The correct Answer is:
D
Subtract `(ii)` from `(i)` we get,
`HA to H^(+)+A^(-)` , `DeltaH=+14.10kJ`
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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