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use the thermodymanmic information : (1...

use the thermodymanmic information :
`(1)/(2)N_(2)(g)+(1)/(2)O_(2)(g)DeltaH^(@)=90.4Kj//mol`
`(1)/(2)N_(2)(g)+O_(2)(g) DeltaH^(@)=33.8KJ//mol`
`2NO_(2)(g)toN_(2)O_(4)(g) DeltaH^(@)=-58.0KJ//mol`
to Calcualate `DeltaH^(@)` Kj /mol for the reaction :
`2NO_(2)(g)+O_(2)(g)toN_(2)O_(4)`

A

`-171.2`

B

`-114.6`

C

`114.6`

D

`171.2`

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a
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