Concept explainers
(a)
Interpretation: Whether the given statement is true for a reaction with
Concept introduction: The activation energy
The change in Gibbs free energy, enthalpy and entropy is represented by
The change in Gibbs free energy describes the spontaneity of the reaction. The change in enthalpy describes the relative bond strength in the substance, whereas the change in entropy describes the randomness in the system.
Answer to Problem 6.20P
The given statement is false. The true statement is, the rate of the reaction with
Explanation of Solution
The given statement is “the reaction is faster than a reaction with
The value of
Therefore, the correct statement is the rate of the given reaction is equal to a reaction with
The given statement is false. The true statement is, the rate of the reaction with
(b)
Interpretation: Whether the given statement is true for a reaction with
Concept introduction: The activation energy
The change in Gibbs free energy, enthalpy and entropy is represented by
The change in Gibbs free energy describes the spontaneity of the reaction. The change in enthalpy describes the relative bond strength in the substance, whereas the change in entropy describes the randomness in the system.
Answer to Problem 6.20P
The true statement is, the rate of the reaction with
Explanation of Solution
The given statement is “the reaction is faster than a reaction with
The value of
Therefore, the correct statement is the rate of the given reaction is lower than the reaction with
The given statement is false. The true statement is, the rate of the reaction with
(c)
Interpretation: Whether the given statement is true for a reaction with
Concept introduction: The activation energy
The change in Gibbs free energy, enthalpy and entropy is represented by
The change in Gibbs free energy describes the spontaneity of the reaction. The change in enthalpy describes the relative bond strength in the substance, whereas the change in entropy describes the randomness in the system.
Answer to Problem 6.20P
The given statement,
Explanation of Solution
The given statement is “
The value of
The relation of
Substitute the value of
Therefore, the given statement is true.
The given statement,
(d)
Interpretation: Whether the given statement is true for a reaction with
Concept introduction: The activation energy
The change in Gibbs free energy, enthalpy and entropy is represented by
The change in Gibbs free energy describes the spontaneity of the reaction. The change in enthalpy describes the relative bond strength in the substance, whereas the change in entropy describes the randomness in the system.
Answer to Problem 6.20P
The given statement, the starting materials are lower in energy than the products of the reaction is true.
Explanation of Solution
The given statement is, “the starting materials are lower in energy than the products of the reaction”.
The given reaction has positive
Therefore, the given statement is true.
The given statement, the starting materials are lower in energy than the products of the reaction is true.
(e)
Interpretation: Whether the given statement is true for a reaction with
Concept introduction: The activation energy
The change in Gibbs free energy, enthalpy and entropy is represented by
The change in Gibbs free energy describes the spontaneity of the reaction. The change in enthalpy describes the relative bond strength in the substance, whereas the change in entropy describes the randomness in the system.
Answer to Problem 6.20P
The given statement is false. The correct statement is, the reaction is exothermic.
Explanation of Solution
The given statement is, “the reaction is exothermic”.
The statement in part (d) states that the starting materials possess lower energy than the products of the reaction. It indicates that bonds of reactants are stronger due to which they absorb energy. Hence, the given statement is false.
Therefore, the correct statement is, the reaction is exothermic.
The given statement is false. The correct statement is, the reaction is exothermic.
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Chapter 6 Solutions
Organic Chemistry
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