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Calculate the standard enthalpy change (...

Calculate the standard enthalpy change (in kJ `"mol"^(-1)`) for the reaction `H_(2)(g)+O_(2)(g)toH_(2)O_(2)(g)`, given that bond enthalpy of H-H, O=O,O-H and O-O (in kJ `"mol"^(-1)`) are respectively 438, 498, 464 and 138.

A

`-334`

B

`-130`

C

`+334`

D

`+130`

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The correct Answer is:
B
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