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H(2(g)) + 1/2O(2(g)) rarr H2O((l)) , Del...

`H_(2(g)) + 1/2O_(2(g)) rarr H_2O_((l)) , DeltaH = -286.2KJ`
`H_2O_((l)) rarr H_((aq))^(+) + OH_((aq))^(-) , DeltaH = +57.3 KJ`
Enthalpy of ionization `OH^(-)` in aqueons solution is 

A

`-228.5KJ`

B

`+228.5KJ`

C

`-343.5KJ`

D

zero

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The correct Answer is:
A
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