We’re being asked to determine a reaction is first order or second order based on the data given.
Recall the first order and second order integrated rate law and their graph:
The integrated rate law for a first-order reaction is as follows:
[A]t = concentration at time t
k = rate constant
t = time
[A]0 = initial concentration
The plot of ln [A] vs. t is linear which shows first-order reaction:
|Moles of A||0.100||0.067||0.045||0.030||0.020|
Determine whether the reaction is first order or second order.
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