Problem: Given the following data2 O3 (g) → 3 O2 (g)            ΔH = -427 kJO2 (g) → 2O (g)                  ΔH = 495 kJNO (g) + O3 (g) → NO2 (g) + O2 (g)   ΔH = -199 kJcalculate ΔH for the reactionNO (g) + O (g) → NO2 (g) 

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Problem Details

Given the following data

2 O3 (g) → 3 O(g)            ΔH = -427 kJ

O2 (g) → 2O (g)                  ΔH = 495 kJ

NO (g) + O3 (g) → NO2 (g) + O2 (g)   ΔH = -199 kJ

calculate ΔH for the reaction

NO (g) + O (g) → NO2 (g) 

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.