Given the following thermochemical equations: 2NO(g) + O2(g) –→ 2NO2(g) AH° = -113.2 kJ %3D 2N,0(g) + 302(g) → 4NO2(g) AH° = -28.0 kJ %3D Calculate AH° for the reaction: N20(g) + 1/2 O2(g) → 2NO(3) kJ %3D

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