Nitric oxides, NO and NO2, contribute to air pollution, acid rain, and the depletion of the ozone layer

ozone-layer

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Nitric oxides, NO and NO2, contribute to air pollution, acid rain, and the depletion of the ozone layer. After NO forms in the combustion chamber of an automobile engine, it reacts further with oxygen to form NO2. The reaction is given by

2NO(g)+O2(g)→2NO2(g)

The following table gives some entropy values:

Calculate ΔSrxn∘ for the reaction
2NO(g)+O2(g)→2NO2(g)

Answer:

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