Given the chemical reactions:
2 NO2(g) → N2(g) + 2 O2(g) ΔH = −68 kJ
N2O4(g) → N2(g) + 2 O2(g) ΔH = −10 kJ
Determine the ΔH for the following reaction:
N2O4(g) → 2 NO2(g)
A. −78 kJ
B. −58 kJ
C. 48 kJ
D. 58 kJ
E. 78 kJ
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