For a Reaction AA $\rightarrow$ Products, [A]₀ = 4 $\rightarrow$ N₂ + O₂ Has the Following Rate Law: After

question 10

Multiple Choice

For a reaction aA $\rightarrow$ products, [A]₀ = 4.0 M, and the first three successive half-lives are 48, 96, and 192 min.
-The reaction 2NO $\rightarrow$ N₂ + O₂ has the following rate law: After a period of 2.0 * 10³ s, the concentration of NO falls from an initial value of 2.8 *10^-3 mol/L to 2.0* 10^-4 mol/L. What is the rate constant, k?

• A) 4.0 *10^-4 M^-1/s
• B) 7.2 * 10^-2 M^-1/s
• C) 1.7 *10^-4 M^-1/s
• D) 4.0 *10^-7 M^-1/s
• E) 3.6 * 10^-2 M^-1/s

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