Reaction rates and rate laws for the following gas phase reaction are given. [03] = 1.0 × 10¹4 molecules/cm³ Time (ms) [NO] 0 6.0 x 108 100 5.0 x 108 500 2.4 × 108 700 1.7 x 108 1000 9.9 × 107 Using the data above: a. Graph concentration vs. time for each data set. b. Graph In[] vs. time. c. Determine the average rate for the reaction between each data point. NO(g) +O3(g) → NO₂(g) + O2(g) [NO]=2.0 x 10¹4 molecules/cm Time [03] 0 1.0 × 10¹⁰ 50 8.4 x 10⁹ 100 7.0 x 10⁹ 200 4.9 x 10⁹ 300 3.4 x 10⁹

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Chapter12: Chemical Kinetics
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Problem 5ALQ: Consider the following statements: In general, the rate of a chemical reaction increases a bit at...
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O
you might expect for the reaction in this question. The overall
reaction is endothermic. Make sure you get the "bumps" the correct relative sizes.
Q19
Reaction rates and rate laws for the following gas phase reaction are given.
NO(g) +O3(g) → NO2(g) + O2(g)
[03] = 1.0 × 10¹4 molecules/cm³
[NO] = 2.0 × 10¹4 molecules/cm
Time (ms)
[NO]
Time
[03]
0
6.0 × 108
0
1.0 × 10¹0
654
100
5.0 × 108
50
8.4 × 10⁹
500
2.4 × 108
100
7.0 × 10⁹
700
1.7 × 108
200
4.9 × 10⁹
1000
9.9 × 107
300
3.4 × 10⁹
Using the data above:
a. Graph concentration vs. time for each data set.
b. Graph In[] vs. time.
c. Determine the average rate for the reaction between each data point.
d. Use your graph to determine the instantaneous reaction rate at 250 ms.
e. Given that the reaction is first order in NO and in O3, determine the rate constant using your calculated rate for each set of
points
f. Use the In[] vs time graph to determine the rate constant.
g.
What is the overall rate law?
h. Convert the units of the rate constant to moles, liters, and seconds.
Q20
Given the following kinetics data for the reaction in Q19:
T(K)
k(M-¹s¯¹)
195
1.08 × 10⁹
https://chem.libretexts.org/@gc
Worksheet 14.4
Transcribed Image Text:O you might expect for the reaction in this question. The overall reaction is endothermic. Make sure you get the "bumps" the correct relative sizes. Q19 Reaction rates and rate laws for the following gas phase reaction are given. NO(g) +O3(g) → NO2(g) + O2(g) [03] = 1.0 × 10¹4 molecules/cm³ [NO] = 2.0 × 10¹4 molecules/cm Time (ms) [NO] Time [03] 0 6.0 × 108 0 1.0 × 10¹0 654 100 5.0 × 108 50 8.4 × 10⁹ 500 2.4 × 108 100 7.0 × 10⁹ 700 1.7 × 108 200 4.9 × 10⁹ 1000 9.9 × 107 300 3.4 × 10⁹ Using the data above: a. Graph concentration vs. time for each data set. b. Graph In[] vs. time. c. Determine the average rate for the reaction between each data point. d. Use your graph to determine the instantaneous reaction rate at 250 ms. e. Given that the reaction is first order in NO and in O3, determine the rate constant using your calculated rate for each set of points f. Use the In[] vs time graph to determine the rate constant. g. What is the overall rate law? h. Convert the units of the rate constant to moles, liters, and seconds. Q20 Given the following kinetics data for the reaction in Q19: T(K) k(M-¹s¯¹) 195 1.08 × 10⁹ https://chem.libretexts.org/@gc Worksheet 14.4
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