Entropy of Reaction for Nitrogen Dioxide Formation Nitric oxides, NO and NO_2, c

Question

Entropy of Reaction for Nitrogen Dioxide Formation Nitric oxides, NO and NO_2, 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 NO_2. The reaction is given by 2NO(g) + O_2(g)rightarrow2NO_2(g) The following table gives some entropy values: Calculate DeltaS_rxndegree for the reaction 2NO(g) + O_2 (g)rightarrow2NO_2(g) Express your answer to one decimal place and include the appropriate units.

Explanation / Answer

delta S = (2*240) - ((2*210.8) + 205.2) = -146.8 J/mol-K

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