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Enthalpy change for the reaction, 4H((g)...

Enthalpy change for the reaction, `4H_((g))rarr 2H_(2(g))` is `-869.6` kJ
The dissociation energy of H-H bond is :

A

`- 434.8 kJ`

B

`- 869.6 kJ `

C

`+ 434.5 kJ `

D

`+ 217.4 kJ`

Text Solution

Verified by Experts

The correct Answer is:
C
The dissociation energy of H-H bond is
`(869.6)/(2) =434.8 kJ " " (because Delta_f H^(@) = - Delta _d H^@)`
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