
The following reaction is first order in A (red spheres) and first order in B (blue spheres):
- (a) What are the relative
rates of this reaction in vessels (1)–(4)? Each vessel has the same volume. - (b) What are the relative values of the rate constant k for cases (1)–(4)?
(a)

Interpretation:
The relative rates of the reaction in the given vessels has to be given.
Concept introduction:
Rate of reaction:
The rate of a reaction is defined by the change in concentration of substrate (reactant) or target (product) with change in time.
Answer to Problem 12.24CP
The relative rates of the reaction in the given vessels (1) – (4) are
Explanation of Solution
Given reaction and information,
Figure 1
Given as
Hence, the rate of reaction is proportional to the product of the number of
In the vessel (1), the product of
In the vessel (2), the product of
In the vessel (3), the product of
In the vessel (4), the product of
Therefore, the relative rates of the reaction in the given vessels (1) – (4) are
(b)

Interpretation:
The relative values of rate constants of the given reaction has to be given.
Concept introduction:
Rate law:
It is an equation that related to the dependence of the reaction rate on the concentration of each substrates (reactants).
Answer to Problem 12.24CP
- The relative values of rate constant for all the given reactions are same.
Explanation of Solution
Given reaction and information,
Figure 1
Given as
Hence, the rate of reaction is proportional to the product of the number of
The relative of the reaction in vessels (1) – (4) are
The relative value of rate constant for all the given reactions are same. Since, the same reaction takes place in each of the given vessels (1) – (4).
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Chapter 12 Solutions
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