
Concept explainers
(a)
Interpretation:
The ratio of rate constants
Concept introduction:
Relative rate is defined as the ratio of
The relationship between relative rate of two reactions A and B under standard condition is shown below.

Answer to Problem 9.7P
The ratio of rate constants
Explanation of Solution
The ratio of rate constants
Where,
•
•
•
The values of
Substitute the values of
The conversion of
Therefore, the conversion of
Solve the above equation.
Therefore, the ratio of rate constants
The ratio of rate constants
(b)
Interpretation:
The difference in the standard free energies of activation at
Concept introduction:
Relative rate is defined as the ratio of rate of a reaction and rate of a standard reaction. The rate constant is numerically equal to the rate under standard condition under which concentration is
The relationship between relative rate of two reactions A and B under standard condition is shown below.

Answer to Problem 9.7P
The difference in the standard free energies of activation at
Explanation of Solution
The formula to calculate relative rate is written below.
Rearrange the equation (1) to calculate the value of difference in the standard free energies of activation as shown below.
Where,
•
•
•
The reaction B is
The values of
Substitute the value of
The conversion of
Therefore, the conversion of
Solve the above equation.
The difference in the standard free energies of activation at
The difference in the standard free energies of activation at
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Chapter 9 Solutions
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