For the decomposition reaction

CHEMISTRY · Single correct · AP · Chemistry · Kinetics · Kinetics

Problem

2\,\text{NO}_2 \rightarrow 2\,\text{NO}+\text{O}_2

, the rate of disappearance of

\text{NO}_2

is measured to be

0.040\,\text{M}\,\text{s}^{-1}

at a particular instant. Which of the following is the rate of appearance of

\text{O}_2

at that same instant? (a)

0.080\,\text{M}\,\text{s}^{-1}

(b)

0.040\,\text{M}\,\text{s}^{-1}

(c)

0.020\,\text{M}\,\text{s}^{-1}

(d)

0.010\,\text{M}\,\text{s}^{-1}