Multiple Choice
At elevated temperatures, nitrogen dioxide decomposes to nitrogen oxide and oxygen: NO2 (g) → NO (g) + ![At elevated temperatures, nitrogen dioxide decomposes to nitrogen oxide and oxygen: NO<sub>2 </sub>(g) → NO (g) + O<sub>2 </sub>(g) The reaction is second order in NO<sub>2</sub> with a rate constant of 0.543 M<sup>-1</sup>s<sup>-1</sup>at 300 °C. If the initial [NO<sub>2</sub>] is 0.260 M, it will take ________ s for the concentration to drop to 0.075 M. A) 3.34 B) 0.0880 C) 2.29 D) 0.299 E) 17.5](https://d2lvgg3v3hfg70.cloudfront.net/TB2701/11ea7cce_1f65_4910_a2ab_c59f7627143b_TB2701_11.jpg)
O2 (g)
The reaction is second order in NO2 with a rate constant of 0.543 M-1s-1at 300 °C. If the initial [NO2] is 0.260 M, it will take ________ s for the concentration to drop to 0.075 M.
A) 3.34
B) 0.0880
C) 2.29
D) 0.299
E) 17.5
Correct Answer:
Verified
Correct Answer:
Verified
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