Question Detail
Question
For N2O4(g) -> 2NO2(g), ΔH = __________ kcal.
Correct Answer
Option B is the correct answer.
Detailed Explanation
The dissociation of dinitrogen tetroxide into nitrogen dioxide is endothermic (ΔH > 0). The answer key states +14 kcal.
Hint
Breaking bonds to form two molecules usually requires energy.