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If DeltaH(f)^(@) for H(2)O(2) and H(2)O ...

If `DeltaH_(f)^(@)` for `H_(2)O_(2)` and `H_(2)O` are `-188` kJ/mole and `-286` kJ/mole, what will be the enthalpy change of the reaction `H_(2)O_(2) rarr H_(2)O+1/2 O_(2)`

A

`-196kJ`

B

`-494kJ`

C

146 kJ

D

`-98kJ `

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The correct Answer is:
A
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