Chemical Kinetics Worksheet With Answers By Prof. Abdullah M. Asiri - 2009 Page 14
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33August 16, 2009
[PROBLEM SET FROM R. CHANG TEST
BANK]
49. At 25°C, by what factor is the reaction rate increased by a catalyst that reduces the activation energy of the
reaction by 1.00 kJ/mol?
A.
1.63
B.
123
C.
1.04
D.
1.50
E.
2.53
50. At 30°C, by how much is a reaction's activation energy decreased by the addition of a catalyst if the
catalyst triples the reaction rate?
A.
2.77 kJ/mol
B.
274 J/mol
C.
2.70 J/mol
D.
119 J/mol
E.
1.20 kJ/mol
51. The activation energy for the following reaction is 60. kJ/mol.
→ Sn
2+
3+
4+
2+
Sn
+ 2Co
+ 2Co
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C
to 28°C?
A.
1.002
B.
4.6
C.
5.6
D.
2.8
E.
696
52. The isomerization of cyclopropane follows first order kinetics. The rate constant at 700 K is 6.20 × 10
-4
-1
min
, and the half-life at 760 K is 29.0 min. Calculate the activation energy for this reaction.
A.
5.07 kJ/mol
B.
27.0 kJ/mol
C.
50.7 kJ/mol
D.
160. kJ/mol
E.
270. kJ/mol
14
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education