Why did the 1st order integrated rate law allow you to find k from the slope?

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter30: Kinetic Methods Of Analysis
Section: Chapter Questions
Problem 30.12QAP
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Why did the 1st order integrated rate law allow you to find k from the slope?

Logger Pro-35 Activation Energy.cmbl
Ele Edit Experiment Data Analyze Insert Options Page Help
Page 1 TO DO
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
Time
(s)
0
4
8
12
16
20
24
32
36
40
48
52
100.26
100.21
116.97
117.04
Latest
200010
Absorbance -0.068
In Absorbance
Temperature
20.4 °C
Figure 1. In absorbance vs time
-1.1-
-1.3
-1.5
-1.7-
E
0
(10.67, -1.464)
Rate Law Determination and Activation Energy
20
40
Time (s)
60
Linear Fit for: Run 2 | In Absorbance
CC=mt+b
m (Slope): -0.005932
b (Y-intercepty -0.9796
Correlation: -0.9998
RMSE 0.002137
100
Transcribed Image Text:Logger Pro-35 Activation Energy.cmbl Ele Edit Experiment Data Analyze Insert Options Page Help Page 1 TO DO 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 Time (s) 0 4 8 12 16 20 24 32 36 40 48 52 100.26 100.21 116.97 117.04 Latest 200010 Absorbance -0.068 In Absorbance Temperature 20.4 °C Figure 1. In absorbance vs time -1.1- -1.3 -1.5 -1.7- E 0 (10.67, -1.464) Rate Law Determination and Activation Energy 20 40 Time (s) 60 Linear Fit for: Run 2 | In Absorbance CC=mt+b m (Slope): -0.005932 b (Y-intercepty -0.9796 Correlation: -0.9998 RMSE 0.002137 100
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