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Changes in enthalpy for the reaction : ...

Changes in enthalpy for the reaction :
`2H_(2)O_(2)(g) rarr 2H_(2)O (l) + O_(2)(g)`
if heat of formation of `H_(2)O_(2)(l)` and `H_(2)O(l)` are `-188 kJ mol^(-1)` and `-286 kJ mol^(-1)` respectively is

A

`-196 kJ mol^(-1)`

B

`+196 kJ mol^(-1)`

C

`+948 kJ mol^(-1)`

D

`-948 kJ mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
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