WorksheetsCh.14: Reaction Mechanism
Total questions: 14
Worksheet time: 8mins
step 2: O3 + O → 2 O2
The oxygen atom (O) is considered to be a(n)...
Mechanisms in which one elementary step is followed by another are very common.
step 1: A + B → Q
step 2: B + Q → C
net reaction: A + 2B → C
Which of the following is false?
If both steps proceed at similar rates, rate law experiments on the net reaction would not reveal that two separate steps are involved here. The rate law for the reaction would be
rate=k[A][B]2
Based on this reaction mechanism, which of the following are intermediates?
A
B
C
D
E
What is the molecularity for step 1?
Unimolecular
Bimolecular
Termolecular
What is the molecularity for step 2?
Unimolecular
Bimolecular
Termolecular
Tetramolecular
What is the overall equation for the reaction with these elementary steps?
2A + 2B + D → 2B + 2C + D + E
A → 2B
A + B → C + D
2A → 2C + E
If this is the correct mechanism for the reaction, which is the rate-limiting step?
1
2
3
What is the rate law for step 1 of this reaction?
rate = k1[A]
rate = k1[B]2
rate = k1[2B]/[A]
rate = k1[A]/[B]2
What is the overall rate law for this full reaction?
rate = k1[A]
rate = k1[B]2
rate = k1[2B]/[A]
rate = k1[A]/[B]2
What is the overall reaction equation?
A → B + C
D + B → 2E
A + D → C + 2E
A + D + B → B + C + 2E
What is the rate-determining step?
1
2
What are the intermediate(s) in this reaction?
A
B
C
D
E
What is the reverse rate law for step 1?
rate = k1[A]
rate = k-1[B][C]
rate = k2[B][D]
rate = k-2[E]2
What is the forward rate law for step 2?
rate = k1[A]
rate = k-1[B][C]
rate = k2[B][D]
rate = k-2[E]2
