(a)
Interpretation:
The below reaction is at equilibrium or not has to be determined.
Concept Introduction:
Consider a gaseous reaction of the form as given below.
The expression of the reaction quotient can be written as given below.
Where,
Direction of a reaction:
- If Q < K, the reaction has tendency to proceed toward products.
- If Q = K, the reaction has achieved the equilibrium position.
- If Q > K, the reaction has tendency to proceed toward reactants.
Where, Q is reaction quotient.
(a)
Explanation of Solution
The required reaction is given below.
The expression for reaction quotient for the above reaction can be written as shown below,
The concentrations of each substance can be calculated as given below.
By plugging all data in the above equation, the value of Q can be calculated as given below.
Therefore, the reaction quotient for
Here,
(b)
Interpretation:
The direction of the reaction
Concept Introduction:
Refer to part (a).
(b)
Explanation of Solution
The required reaction is given below.
The value of Q for the reaction is
Therefore,
(c)
Interpretation:
The equilibrium composition of the reaction
(c)
Explanation of Solution
The concentrations of each substance can be calculated as given below.
An equilibrium table can be set up as given below.
Now, these values in the fourth row can be inserted in the equilibrium constant expression as shown below.
Now, the equilibrium constant expression can be solved for x.
Therefore, the equilibrium composition of the reaction is
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Chapter 5 Solutions
Chemical Principles: The Quest for Insight
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