(a)
Interpretation:
The expression for K for the given equilibrium is to be stated.
Concept introduction:
When any reaction is at equilibrium, a constant expresses a relationship between the reactant side and the product side. This constant is known as equilibrium constant. It is denoted by
The change in Gibbs free energy for a reaction when reactants and products are present in their standard states of pressure, forms and concentration is represented by
(a)
Answer to Problem 5.17E
The expression for K for the given equilibrium is,
Explanation of Solution
The given reaction is,
The expression for K for the given equilibrium is,
Where,
•
•
•
The expression for K for the given equilibrium is,
(b)
Interpretation:
The value of
Concept introduction:
When any reaction is at equilibrium, a constant expresses a relationship between the reactant side and the product side. This constant is known as equilibrium constant. It is denoted by
The change in Gibbs free energy for a reaction when reactants and products are present in their standard states of pressure, forms and concentration is represented by
(b)
Answer to Problem 5.17E
The value of
Explanation of Solution
The value of
The value of
The value of
The value of Gibbs free energy of the complete reaction is calculated by the expression,
Substitute the respective values of Gibbs free energy of the product and the reactant in the above expression.
The value of
(c)
Interpretation:
The value of K for the given equilibrium is to be calculated.
Concept introduction:
When any reaction is at equilibrium, a constant expresses a relationship between the reactant side and the product side. This constant is known as equilibrium constant. It is denoted by
The change in Gibbs free energy for a reaction when reactants and products are present in their standard states of pressure, forms and concentration is represented by
(c)
Answer to Problem 5.17E
The value of K for the given equilibrium is
Explanation of Solution
The calculated value of
The conversion of kilojoule to joule is done as,
Thus, the Gibbs free energy of the reaction becomes
The given temperature in appendix 2 at which all the
The value of gas constant, R is
The Gibbs expression is also expressed as,
Substitute the respective values of Gibbs energy, gas constant and temperature in the above expression.
The value of the value of K for the given equilibrium is
(d)
Interpretation:
The direction in which the reaction will move if
Concept introduction:
When any reaction is at equilibrium, a constant expresses a relationship between the reactant side and the product side. This constant is known as equilibrium constant. It is denoted by
The change in Gibbs free energy for a reaction when reactants and products are present in their standard states of pressure, forms and concentration is represented by
(d)
Answer to Problem 5.17E
If
Explanation of Solution
The given pressure for
The given pressure for
The given pressure for
The calculated value of equilibrium constant,
The expression for the equilibrium constant can be shown as,
Substitute the respective values of pressure of hydrogen cyanide and equilibrium constant in the above expression.
The given temperature in appendix 2 is
The value of gas constant, R is
The equilibrium constant with respect to concentration of the reaction is calculated by the expression,
Where,
•
•
•
•
Substitute all the respective values in the above expression.
Thus, the value of
If
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Chapter 5 Solutions
Physical Chemistry
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