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The standard heat of formation of NO2(g)...

The standard heat of formation of `NO_2(g)` amd `N_2O_4(g)` are 8.0 2.0 kcal `mol^-1` respectively. The heat of dimerization of `NO_2` in kcal is:

A

10

B

`-6.0`

C

`-12.0`

D

`-14.0`

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The correct Answer is:
D
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