The initial rate data for the reaction 2N₂O₅(g) $\rightarrow$ 4NO₂(g) + O₂(g) is shown in the following table. Determine the value of the rate constant for this reaction. Experiment
[N₂O₅](M)
Rate (M/s)
1
2.56*10³
450
2
1.28 *10²
22.5

Question

The initial rate data for the reaction 2N₂O₅(g)

\rightarrow

4NO₂(g) + O₂(g) is shown in the following table. Determine the value of the rate constant for this reaction. Experiment
[N₂O₅](M)
Rate (M/s)
1
2.56*10³
450
2
1.28 *10²
22.5

Quizplus · Accepted Answer

The reaction rate can be represented as: rate = k[N₂O₅][O₂] Using the initial rate data for experiments 1 and 2, we can set up two equations: Experiment 1: 450 = k[2.56][2.56] Experiment 2: 22.5 = k[1.28][1.28] Simplifying each equation: Experiment 1: k = 450/(2.56*2.56) = 66.3 Experiment 2: k = 22.5/(1.28*1.28) = 13.6 The average value of k is (66.3 + 13.6)/2 = 39.95 ≈ 0.176 s^-¹. Therefore, the best choice is B.

The Initial Rate Data for the Reaction 2N2O5(g) →\rightarrow→ 4NO2(g) + O2(g) Is Shown in the Following Table

The Initial Rate Data for the Reaction 2N₂O₅(g) $\rightarrow$ 4NO₂(g) + O₂(g) Is Shown in the Following Table