Problem: Entropy of Reaction for Nitrogen Dioxide Formation 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: Part ACalculate ΔS°rxn for the reaction 2NO (g) + O2 (g) → 2NO2 (g)

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Entropy of Reaction for Nitrogen Dioxide 

Formation 

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: 

Part A

Calculate ΔS°rxn for the reaction 

2NO (g) + O2 (g) → 2NO2 (g)