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In a study of the gas phase decomposition of nitrogen dioxide at 383 °0CNO2(g) NO(g) + ½ O2(g)the following data were obtained8.85x10-218.84.43x10-443.90.354seconds6.27Hint: It is not necessary to graph these data.The observed half life for this reaction when the starting concentration is 0.354 M is0.177 M iss and when the starting concentration is1 -1The average Δ(1/[NO2]) / Δt from t-0 s to t-6.27s isThe average A(1/[NO2]) / At from t- 6.27 s to t-18.8 s isBased on these data, the rate constant for thisv order reaction is

Question
In a study of the gas phase decomposition of nitrogen dioxide at 383 °0C
NO2(g) NO(g) + ½ O2(g)
the following data were obtained
8.85x10-2
18.8
4.43x10-4
43.9
0.354
seconds
6.27
Hint: It is not necessary to graph these data.
The observed half life for this reaction when the starting concentration is 0.354 M is
0.177 M is
s and when the starting concentration is
1 -1
The average Δ(1/[NO2]) / Δt from t-0 s to t-6.27s is
The average A(1/[NO2]) / At from t- 6.27 s to t-18.8 s is
Based on these data, the rate constant for this
v order reaction is
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In a study of the gas phase decomposition of nitrogen dioxide at 383 °0C NO2(g) NO(g) + ½ O2(g) the following data were obtained 8.85x10-2 18.8 4.43x10-4 43.9 0.354 seconds 6.27 Hint: It is not necessary to graph these data. The observed half life for this reaction when the starting concentration is 0.354 M is 0.177 M is s and when the starting concentration is 1 -1 The average Δ(1/[NO2]) / Δt from t-0 s to t-6.27s is The average A(1/[NO2]) / At from t- 6.27 s to t-18.8 s is Based on these data, the rate constant for this v order reaction is

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Step 1

(a)

Observed half-time is the time required for a substance to become half of its initial concentration. Observed half-life for the reactant when initial concentration is 0.354 M and when initial concentration is 0.177 can be obtained from the data.

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Step 2

(b)

Average Δ(1/[NO2])/Δt is determined from t = 0s to t = 6.27 s.

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Step 3

Average Δ(1/[NO2])/Δt is determined from t = ...

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Chemical Thermodynamics

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