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The Decomposition of N2O5(g) to NO2(g) and O2(g) Obeys First-Order

Question 21

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The decomposition of N2O5(g) to NO2(g) and O2(g) obeys first-order kinetics. Assume the form of the rate law is
Rate The decomposition of N<sub>2</sub>O<sub>5</sub>(g)  to NO<sub>2</sub>(g)  and O<sub>2</sub>(g)  obeys first-order kinetics. Assume the form of the rate law is Rate   where k = 3.4 × 10<sup>-5</sup> s<sup>-1</sup> at 25°C. -What is the initial rate of reaction at 25°C where [N<sub>2</sub>O<sub>5</sub>]<sub>0</sub> = 5.0 × 10<sup>-2</sup> M? A)  3.4 × 10<sup>-5</sup> mol/L • s B)  5.0 × 10<sup>-2</sup> mol/L • s C)  6.8 × 10<sup>-4</sup> mol/L • s D)  1.7 × 10<sup>-6</sup> mol/L • s E)  none of these where k = 3.4 × 10-5 s-1 at 25°C.
-What is the initial rate of reaction at 25°C where [N2O5]0 = 5.0 × 10-2 M?


A) 3.4 × 10-5 mol/L • s
B) 5.0 × 10-2 mol/L • s
C) 6.8 × 10-4 mol/L • s
D) 1.7 × 10-6 mol/L • s
E) none of these

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