Chemical Kinetics Worksheet With Answers By Prof. Abdullah M. Asiri - 2009 Page 21
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33August 16, 2009
[PROBLEM SET FROM R. CHANG TEST
BANK]
72. With respect to the figure below, which choice correctly identifies all the numbered positions?
A.
Row 1
B.
Row 2
C.
Row 3
D.
Row 4
E.
Row 5
73. The activation energy of a certain uncatalyzed reaction is 64 kJ/mol. In the presence of a catalyst, the E
is
a
55 kJ/mol. How many times faster is the catalyzed than the uncatalyzed reaction at 400°C? Assume that
the frequency factor remains the same.
A.
5.0 times
B.
1.16 times
C.
15 times
D.
2.0 times
E.
0.2 times
21
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