Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
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 1 2 4 8 10 12 [A]. M 1.50 x 10-¹ 1.27 x 10-1 1.07 x 10-1 7.66 x 10-² 3.91 x 10-² 2.80 x 10-2 2.00 x 10-2 (a) What is the average rate of reaction between 1 and 4 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 8 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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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 1 2 4 8 10 12 [A]. M 1.50 x 10-¹ 1.27 x 10-1 1.07 x 10-1 7.66 x 10-² 3.91 x 10-² 2.80 x 10-2 2.00 x 10-2 (a) What is the average rate of reaction between 1 and 4 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 8 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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