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The average O-H Bond energy in H(2)O wit...

The average `O-H` Bond energy in `H_(2)O` with the help of following data :
(P) `H_(2)O(l)toH_(2)O(g)," "DeltaH=+40.6 kJ mol^(-1)`
(Q) `2H(g)toH_(2)(g)," "DeltaH=-435.0 kJ mol^(-1)`
(R ) `O_(2)(g)to2O(g)," "DeltaH=+489.6 kJ mol^(-1)`
(S) `2H_(2)(g)+O_(2)(g)to2H_(2)O(l),` ` " "DeltaH=-571.6 kJ mol^(-1)`

A

`584.9 kJ "mole"^(-1)`

B

`279.8 kJ"mole"^(-1)`

C

`462.5 kJ"mole"^(-1)`

D

`925 kJ "mole"^(-1)`

Text Solution

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The correct Answer is:
C
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