Problem: One of the components of polluted air is NO. It is formed in the high-temperature environment of internal combustion engines by the following reaction:N2 (g) + O2 (g) → 2NO (g),  ΔH = 180 kJWhy are high temperatures needed to convert N2 and O2 to NO?

FREE Expert Solution

Recall: An endothermic reaction absorbs heat from the surroundings. The change in enthalpy for endothermic reactions is positive. On the other hand, an exothermic reaction releases heat to the surrounding, and the change in enthalpy is negative.

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Problem Details

One of the components of polluted air is NO. It is formed in the high-temperature environment of internal combustion engines by the following reaction:

N2 (g) + O2 (g) → 2NO (g),  ΔH = 180 kJ

Why are high temperatures needed to convert N2 and Oto NO?


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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Calorimetry concept. You can view video lessons to learn Calorimetry. Or if you need more Calorimetry practice, you can also practice Calorimetry practice problems.

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