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H (2) to 2H, Delta H = 430 kJ F (2) to...

`H _(2) to 2H, Delta H = 430 kJ`
`F _(2) to 2F, Delta H= 148 kJ`
`2 HF to H _(2) + F _(2) , Delta H = 530 kJ`
Bond energy of HF bond is

A

`1108 kJ mol ^(-1)`

B

`-1108 kJ mol ^(-1)`

C

`- 554 kJ mol ^(-1)`

D

`554 kJ mol ^(-1)`

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