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If the bond energies of H-H, Br-Br and H...

If the bond energies of H-H, Br-Br and H-Br are 433, 192 and 364 KJ `"mol"^(-1)` respectively , then `DeltaH^(@)` for the reaction `H_(2)(g) + Br_(2)(g) to 2HBr(g)` is

A

`+ 103 KJ`

B

`+261kJ`

C

`–103 kJ`

D

`–261 kJ`

Text Solution

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The correct Answer is:
C
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