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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

`+434.8 kJ`

D

`+217.4 kJ`

Text Solution

Verified by Experts

The correct Answer is:
C
`H_(2(g))rarr 2H, Delta H = ?`
`therefore` The dissociation energy of H-H bond `=(869.6)/(2)`
`=436.8 kJ`
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