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HI(g)½ H2(g) + ½ I2(g) the following data were obtained: [HI], M 0.573 0.287 0.144 7.20×10-2 seconds 0 520 781 912 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 0.573 M is s and when the starting concentration is 0.287 M is s. (2) The average rate of disappearance of HI from t = 0 s to t = 520 s is  M s-1. (3) The average rate of disappearance of HI from t = 520 s to t = 781 s is  M s-1.

HI(g)½ H2(g) + ½ I2(g) the following data were obtained: [HI], M 0.573 0.287 0.144 7.20×10-2 seconds 0 520 781 912 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 0.573 M is s and when the starting concentration is 0.287 M is s. (2) The average rate of disappearance of HI from t = 0 s to t = 520 s is  M s-1. (3) The average rate of disappearance of HI from t = 520 s to t = 781 s is  M s-1.

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.48PAE: 11.48 The following data were collected for the decomposition of NT),-: Time, f (min) [N2Os] (mol...
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HI(g)½ H2(g) + ½ I2(g)

the following data were obtained:

[HI], M 0.573 0.287 0.144 7.20×10-2
seconds 0 520 781 912



Hint: It is not necessary to graph these data.

(1)
The observed half life for this reaction when the starting concentration is 0.573 M is s and when the starting concentration is 0.287 M is s.

(2)
The average rate of disappearance of HI from t = 0 s to t = 520 s is  M s-1.

(3)
The average rate of disappearance of HI from t = 520 s to t = 781 s is  M s-1.

(4)
Based on these data, the rate constant for this _______zerofirstsecond order reaction is M s-1.

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