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The enthalpy changes at 298 K in successive breaking of `O-H` bonds of water, are `H_(2)O(g) rarr H(g)+OH(g),DeltaH=498kJ mol^(-1)` `OH(g) rarr H(g)+O(g), DeltaH =428 kJ mol^(-1)` The bond energy of the O-H bond isA. `498 "KJ mol"^(-1)`B. `428 "KJ mol"^(-1)`C. `70 "KJ mol"^(-1)`D. `463 "KJ mol"^(-1)`

Answer» Correct Answer - D


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