Wait a minute, before we start talking about integrating the second order rate e
ID: 967144 • Letter: W
Question
Wait a minute, before we start talking about integrating the second order rate equation, let's make sure you have a reasonable understanding of first order equations. Select all of the following that are true about first order reactions.
A. The rate of a first order reaction does not change during the course of the reaction.
B. The integrated first order equation shows us that a plot of [A] vs time will be linear for a first order reaction.
C. The integrated first order equation shows us that a plot of ln[A] vs time will be linear for a first order reaction.
D. The slope of the plot of ln[A] vs time for a first order reaction, equals k.
E. The half life of a first order reaction does not change as the [A] changes.
F. The rate of a first order reaction is not constant throughout the reaction. The rate is slowing down.
G. The slope of the plot [A] vs time for a first order reaction equals k.
Explanation / Answer
A is false since it is for zero order
B is false since its for zero order
C is true since for 1st order t= ( 1/k) ln (a/a-x)
D is false slope = -k for ln A vs t
E True , half life given by t1/2 = 0.693 / k
F true
G fase
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