In the sort of complex mixture of gases we might find in urban air, many chemical reactions may occur. For example, NO₂, which we’ve mentioned as a key species in the formation of ozone, can also react with ozone.

In a study of this reaction, three experiments were run at the same temperature, and the following data obtained:

Determine the rate law and rate constant for this reaction.

Strategy To determine the order with respect to each of the reactants, look for pairs of experiments that differ only in the concentration of one reactant and compare their rates. Any difference in rate must be due to the effect of the reactant whose concentration changed. Write the rate law and use it to determine k.

Transcribed Image Text:

NO₂ + 03 → NO3 + O₂