The standard enthalpies of formation of ...

The standard enthalpies of formation of `H_(2)O_(2(l)) and H_(2)O_((l)) " are " -187.8 kJ "mole"^(-1) and -285.8 kJ "mole"^(-1)` respectively. The `Delta H^(0)` for the decomposition of one mole of `H_(2)O_(2(l)) " to " H_(2)O_((l)) and O_(2(g))` is

A

`-473.6 K.J. "mole"^(-1)`

B

`-98.0 K.J. "mole"^(-1)`

C

`+473.6 K.J. "mole"`

D

`+187.8 K.J. "mole" ^(-1)`

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The correct Answer is:

B

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