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Collision Theory: Determining the Activation Energy
Related Topics
Wize High School Grade 12 Chemistry Textbook > Rates of Reactions
Collision Theory & Activated Complex Theory
7 Activities
Use the graph below to calculate the activation energy of the reaction below.
CH
2
CH
2
(
g
)
+
Cl
2
(
g
)
→
CH
2
Cl
CH
2
Cl
(
g
)
\textrm{CH}_2\textrm{CH}_{2(g)} + \textrm{Cl}_{2(g)}\rightarrow \textrm{CH}_2\textrm{Cl}\textrm{CH}_2\textrm{Cl}_{(g)}
CH
2
CH
2
(
g
)
+
Cl
2
(
g
)
→
CH
2
Cl
CH
2
Cl
(
g
)
1.02 kJ/mol
1.55 kJ/mol
2.66 kJ/mol
3.17 kJ/mol
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More Collision Theory & Activated Complex Theory Questions:
The decomposition of ozone to oxygen gas can also occur in the presence of chlorine atoms. A proposed mechanism for this exothermic reaction is as follows:
C
ℓ
(
g
)
+
O
3
(
g
)
→
C
ℓ
O
(
g
)
+
O
2
(
g
)
s
l
o
w
O
3
(
g
)
→
O
(
g
)
+
O
2
(
g
)
f
a
s
t
C
ℓ
O
(
g
)
+
O
(
g
)
→
C
ℓ
(
g
)
+
O
2
(
g
)
f
a
s
t
\begin{aligned}&C\ell(g)+O_3(g)\rightarrow C\ell O(g)+O_2(g)&slow\\ &O_3(g)\rightarrow O(g)+O_2(g)&fast \\&C\ell O(g)+O(g)\rightarrow C\ell(g)+O_2(g)&fast\end{aligned}
C
ℓ
(
g
)
+
O
3
(
g
)
→
C
ℓ
O
(
g
)
+
O
2
(
g
)
O
3
(
g
)
→
O
(
g
)
+
O
2
(
g
)
C
ℓ
O
(
g
)
+
O
(
g
)
→
C
ℓ
(
g
)
+
O
2
(
g
)
s
l
o
w
f
a
s
t
f
a
s
t
Which of these statements about this reaction is true?
The decomposition of ozone to oxygen gas can also occur in the presence of chlorine atoms. A proposed mechanism for this exothermic reaction is as follows:
C
ℓ
(
g
)
+
O
3
(
g
)
→
C
ℓ
O
(
g
)
+
O
2
(
g
)
s
l
o
w
O
3
(
g
)
→
O
(
g
)
+
O
2
(
g
)
f
a
s
t
C
ℓ
O
(
g
)
+
O
(
g
)
→
C
ℓ
(
g
)
+
O
2
(
g
)
f
a
s
t
\begin{aligned}&C\ell(g)+O_3(g)\rightarrow C\ell O(g)+O_2(g)&slow\\ &O_3(g)\rightarrow O(g)+O_2(g)&fast \\&C\ell O(g)+O(g)\rightarrow C\ell(g)+O_2(g)&fast\end{aligned}
C
ℓ
(
g
)
+
O
3
(
g
)
→
C
ℓ
O
(
g
)
+
O
2
(
g
)
O
3
(
g
)
→
O
(
g
)
+
O
2
(
g
)
C
ℓ
O
(
g
)
+
O
(
g
)
→
C
ℓ
(
g
)
+
O
2
(
g
)
s
l
o
w
f
a
s
t
f
a
s
t
Which of these statements about this reaction is true?
Collision Theory: Ozone
The decomposition of ozone to oxygen gas can also occur in the presence of chlorine atoms. A proposed mechanism for this exothermic reaction is as follows:
C
ℓ
(
g
)
+
O
3
(
g
)
→
C
ℓ
O
(
g
)
+
O
2
(
g
)
s
l
o
w
O
3
(
g
)
→
O
(
g
)
+
O
2
(
g
)
f
a
s
t
C
ℓ
O
(
g
)
+
O
(
g
)
→
C
ℓ
(
g
)
+
O
2
(
g
)
f
a
s
t
\begin{aligned}&C\ell(g)+O_3(g)\rightarrow C\ell O(g)+O_2(g)&slow\\ &O_3(g)\rightarrow O(g)+O_2(g)&fast \\&C\ell O(g)+O(g)\rightarrow C\ell(g)+O_2(g)&fast\end{aligned}
C
ℓ
(
g
)
+
O
3
(
g
)
→
C
ℓ
O
(
g
)
+
O
2
(
g
)
O
3
(
g
)
→
O
(
g
)
+
O
2
(
g
)
C
ℓ
O
(
g
)
+
O
(
g
)
→
C
ℓ
(
g
)
+
O
2
(
g
)
s
l
o
w
f
a
s
t
f
a
s
t
Which of these statements about this reaction is true?
For reaction
A
B
+
C
⇌
A
+
B
C
AB+C \rightleftharpoons A+BC
A
B
+
C
⇌
A
+
B
C
, the activation energy for the forward reaction is 10 kJ/(mol·rxn)
–1
. When we increase the temperature until the
average collision energy
of the particles is larger than 10 kJ/mol, there are still collisions between AB and C that are
not
successful reactions.
Why not
? Select all that apply
