The reaction 2 NO2?2 NO + O2 has the rate constant k =
Chapter 6, Problem 101AE(choose chapter or problem)
The reaction \(2 \mathrm{NO}_2 \longrightarrow 2 \mathrm{NO}+\mathrm{O}_2\) has the rate constant \(k=0.63 M^{-1} \mathrm{~s}^{-1}\). Based on the units for k, is the reaction first or second order in \(\mathrm{NO}_2\)? If the initial concentration of \(\mathrm{NO}_2\) is 0.100 M, how would you determine how long it would take for the concentration to decrease to 0.025 M?
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