
(a)
Interpretation:
The explanations for the given set of statements have to be given.
Concept introduction:
Free energy:
Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system.
Relationship between
(a)

Explanation of Solution
To explain: The change in standard free energy for the given reaction
Given reaction
The relationship between
Above equation shows that, if the temperature remains constant then the free energy change will remains constant.
(b)
Interpretation:
The explanations for the given set of statements have to be given.
Concept introduction:
Free energy:
Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system.
Relationship between
(b)

Explanation of Solution
To explain: The change in free energy for the given reaction
Given reaction
The relationship between
Above equation shows that, if the value of reaction quotient changes then the value of free energy also change.
(c)
Interpretation:
The explanations for the given set of statements have to be given.
Concept introduction:
Free energy:
Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system.
Relationship between
(c)

Explanation of Solution
To explain: The spontaneity of the given reaction
Given reaction and information
Since, the value of equilibrium constant is very large, the given reaction is spontaneous.
(d)
Interpretation:
The explanations for the given set of statements have to be given.
Concept introduction:
Free energy:
Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system.
Relationship between
(d)

Explanation of Solution
To check: The given statement
Given statement
The given statement is not correct. At equilibrium the value of free energy is zero, but the value of standard free energy change is constant. Hence, the given statement is not true.
(e)
Interpretation:
The explanations for the given set of statements have to be given.
Concept introduction:
Free energy:
Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system.
Relationship between
(e)

Explanation of Solution
To check: The composition of the mixture at equilibrium
Given reaction
The value of equilibrium constant is very large, so at equilibrium the composition will mostly the product side
(f)
Interpretation:
The explanations for the given set of statements have to be given.
Concept introduction:
Free energy:
Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system.
Relationship between
(f)

Explanation of Solution
To give: The values of
Given reaction
For the reverse reaction,
At equilibrium, the value of free energy change is zero. The reaction mixture will mostly reactant side
The given reverse reaction is non-spontaneous.
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Chapter 18 Solutions
General Chemistry
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