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timer Asked: Jan 6th, 2015

Question description

NO2(g) + CO(g) " src=""> NO(g) + CO2(g)

The rate of the above reaction depends only on the concentration of nitrogen dioxide at temperatures below 225°C.
At a temperature below 225°C the following data were obtained:

0 0.520
1.10×103 0.481
2.75×103 0.433
4.12×103 0.400
8.25×103 0.325
1.65×104 0.236

Which of the following expressions for the rate law (either differential or integrated) are completely consistent with the above experimental data.

k[NO2]3 = -d[CO]/dt

ln([NO2]/[NO2]0) = -kt

k[NO2]2 = d[NO]/dt

-d[CO]/dt = k[NO2]2

1/[NO2] - 1/[NO2]0 = kt
Calculate the rate constant (k).
Enter the numerical value and corresponding units.


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