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For the overall reaction the experimental rate law is
CHEMISTRY · Subjective · AP · Chemistry · Kinetics · Kinetics
Problem
For the overall reaction
A
+
2
B
→
C
A + 2B \to C
A
+
2
B
→
C
the experimental rate law is
r
a
t
e
=
k
[
A
]
[
B
]
2
rate = k[A][B]^2
r
a
t
e
=
k
[
A
]
[
B
]
2
. A chemist proposes the mechanism below. Step 1 (slow):
A
+
B
→
D
A + B \to D
A
+
B
→
D
. Step 2 (fast):
D
+
B
→
C
D + B \to C
D
+
B
→
C
. Explain in one sentence why this mechanism is inconsistent with the measured rate law.
Related theory
Reaction Mechanisms
Chemical Kinetics
Rate Law
Reaction mechanism
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