APFIVE Graphical Analysis of Pseudo-Order Kinetics
The data below were collected for the reaction X + Y → Z. If the reaction follows the rate law Rate = k[X][Y]^2, which of the following plots would produce a straight line?
Time (s) | [X] (M) | [Y] (M) | [Z] (M)
0 | 0.500 | 0.500 | 0.000
10 | 0.450 | 0.400 | 0.050
20 | 0.400 | 0.300 | 0.100
30 | 0.350 | 0.200 | 0.150
40 | 0.300 | 0.100 | 0.200
A
Both would yield a straight line
B
ln[X] vs. time, if [Y] is in large excess
C
Looking at the data, neither graph would yield a straight line
D
1/[X] vs. time, if [Y] is in large excess
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