
(a)
Interpretation:
The order of the reaction in butadiene should be determined.
Concept Introduction:
Integrated rate laws for zero, first and second order reactions are,
Zeroth order:
First order:
Second order:
(b)
Interpretation:
Time taken for dimerization to complete 1% should be determined.
Concept Introduction:
Integrated rate law for a second order reaction;
[A]t − concentration of A at time t
[A]0 − initial concentration of A
k − rate constant
t − time
(c)
Interpretation:
Time taken for dimerization to complete 2% should be determined.
Concept Introduction:
Integrated rate law for a second order reaction;
[A]t − concentration of A at time t
[A]0 − initial concentration of A
k − rate constant
t − time
(d)
Interpretation:
The half-life for the reaction if the initial concentration of butadiene is 0.0200 M should be calaculated.
Concept Introduction:
The half-life for a second order reaction can be calculated by,
k − rate constant
[A]0 − initial concentration of A
(e)
Interpretation:
The activation energy for the dimerization of butadiene should be calculated.
Concept Introduction:
Arrhenius equation
k − equilibrium constant
Ea − activation energy
R − universal gas constant
T − temperature
A − pre-exponential factor.

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Chapter 15 Solutions
Chemical Principles
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