Multiple Choice
A proposed mechanism for the decomposition of N2O5 is as follows:
N2O5 ![A proposed mechanism for the decomposition of N<sub>2</sub>O<sub>5</sub> is as follows: N<sub>2</sub>O<sub>5</sub> NO<sub>2</sub> + NO<sub>3</sub> Slow step NO<sub>2</sub> + NO<sub>3</sub> NO<sub>2</sub> + O<sub>2</sub> + NO Fast step NO + N<sub>2</sub>O<sub>5</sub> 3NO<sub>2</sub> Fast step What is the rate law predicted by this mechanism? A) Rate = k<sub>1</sub>k<sub>2</sub>[N<sub>2</sub>O<sub>5</sub>][NO<sub>2</sub>][NO<sub>3</sub>] B) Rate = k<sub>2</sub>[NO<sub>2</sub>][NO<sub>3</sub>] C) Rate = k<sub>3</sub>[NO][N<sub>2</sub>O<sub>5</sub>] D) Rate = k<sub>1</sub>k<sub>2</sub>k<sub>3</sub>[N<sub>2</sub>O<sub>5</sub>]<sup>2</sup> E) Rate = k<sub>1</sub>[N<sub>2</sub>O<sub>5</sub>]](https://d2lvgg3v3hfg70.cloudfront.net/TB2288/11ea7a3a_9f0e_cb80_a82d_ddd6bd84199e_TB2288_11.jpg)
NO2 + NO3
Slow step
NO2 + NO3 ![A proposed mechanism for the decomposition of N<sub>2</sub>O<sub>5</sub> is as follows: N<sub>2</sub>O<sub>5</sub> NO<sub>2</sub> + NO<sub>3</sub> Slow step NO<sub>2</sub> + NO<sub>3</sub> NO<sub>2</sub> + O<sub>2</sub> + NO Fast step NO + N<sub>2</sub>O<sub>5</sub> 3NO<sub>2</sub> Fast step What is the rate law predicted by this mechanism? A) Rate = k<sub>1</sub>k<sub>2</sub>[N<sub>2</sub>O<sub>5</sub>][NO<sub>2</sub>][NO<sub>3</sub>] B) Rate = k<sub>2</sub>[NO<sub>2</sub>][NO<sub>3</sub>] C) Rate = k<sub>3</sub>[NO][N<sub>2</sub>O<sub>5</sub>] D) Rate = k<sub>1</sub>k<sub>2</sub>k<sub>3</sub>[N<sub>2</sub>O<sub>5</sub>]<sup>2</sup> E) Rate = k<sub>1</sub>[N<sub>2</sub>O<sub>5</sub>]](https://d2lvgg3v3hfg70.cloudfront.net/TB2288/11ea7a3a_9f0e_cb81_a82d_1df3dba4acf5_TB2288_11.jpg)
NO2 + O2 + NO
Fast step
NO + N2O5 ![A proposed mechanism for the decomposition of N<sub>2</sub>O<sub>5</sub> is as follows: N<sub>2</sub>O<sub>5</sub> NO<sub>2</sub> + NO<sub>3</sub> Slow step NO<sub>2</sub> + NO<sub>3</sub> NO<sub>2</sub> + O<sub>2</sub> + NO Fast step NO + N<sub>2</sub>O<sub>5</sub> 3NO<sub>2</sub> Fast step What is the rate law predicted by this mechanism? A) Rate = k<sub>1</sub>k<sub>2</sub>[N<sub>2</sub>O<sub>5</sub>][NO<sub>2</sub>][NO<sub>3</sub>] B) Rate = k<sub>2</sub>[NO<sub>2</sub>][NO<sub>3</sub>] C) Rate = k<sub>3</sub>[NO][N<sub>2</sub>O<sub>5</sub>] D) Rate = k<sub>1</sub>k<sub>2</sub>k<sub>3</sub>[N<sub>2</sub>O<sub>5</sub>]<sup>2</sup> E) Rate = k<sub>1</sub>[N<sub>2</sub>O<sub>5</sub>]](https://d2lvgg3v3hfg70.cloudfront.net/TB2288/11ea7a3a_9f0e_f292_a82d_7b19e9f7d4d7_TB2288_11.jpg)
3NO2
Fast step
What is the rate law predicted by this mechanism?
A) Rate = k1k2[N2O5][NO2][NO3]
B) Rate = k2[NO2][NO3]
C) Rate = k3[NO][N2O5]
D) Rate = k1k2k3[N2O5]2
E) Rate = k1[N2O5]
Correct Answer:
Verified
Correct Answer:
Verified
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