5. The reaction A → B+C is known to be first order in A. Below are data showing the concentration of A as a function of reaction time. Time, h 0 2 4 8 16 20 24 [A]. M 1.50 x 10-¹ 1.35 x 10-¹ 1.21 x 10-¹ 9.74 x 10-² 6.32 x 10-2 5.09 x 10-² 4.10 x 10-² (a) What is the average rate of reaction between 2 and 8 h? Report the units as well as the numbers. (b) Plot the data above, showing the concentration of A as a function of the time. From your graph, determine the instantaneous rate of reaction at 16 h. Report the units as well as the numbers. (c) Plot In [A] versus time. Estimate the rate constant for this first-order reaction from your graph. Report the units as well as the numbers.

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5.
The reaction A →→ B + C is known to be first order in A. Below are data showing the concentration of A
as a function of reaction time.
Time, h
0
2
4
8
16
20
24
[A], M
1.50 x 10-¹
1.35 x 10-1
1.21 x 10-¹
9.74 x 10-2
6.32 x 10-²
5.09 x 10-2
4.10 x 10-2
(a) What is the average rate of reaction between 2 and 8 h? Report the units as well as the numbers.
(b) Plot the data above, showing the concentration of A as a function of the time. From your graph,
determine the instantaneous rate of reaction at 16 h. Report the units as well as the numbers.
(c) Plot In [A] versus time. Estimate the rate constant for this first-order reaction from your graph.
Report the units as well as the numbers.
Transcribed Image Text:5. The reaction A →→ B + C is known to be first order in A. Below are data showing the concentration of A as a function of reaction time. Time, h 0 2 4 8 16 20 24 [A], M 1.50 x 10-¹ 1.35 x 10-1 1.21 x 10-¹ 9.74 x 10-2 6.32 x 10-² 5.09 x 10-2 4.10 x 10-2 (a) What is the average rate of reaction between 2 and 8 h? Report the units as well as the numbers. (b) Plot the data above, showing the concentration of A as a function of the time. From your graph, determine the instantaneous rate of reaction at 16 h. Report the units as well as the numbers. (c) Plot In [A] versus time. Estimate the rate constant for this first-order reaction from your graph. Report the units as well as the numbers.
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