Interpretation:
The equilibrium constant for the reaction is to be calculated.
Concept introduction:
The reaction rate is defined as the speed by which the reaction is proceeding. The reaction rate depends on several factors such as the concentration of reactant and temperature. When any reaction is at equilibrium then a constant expresses a relationship between the reactant side and the product side. This constant is known as equilibrium constant. It is denoted by
Answer to Problem 20.45E
The equilibrium constant value of a reaction is
Explanation of Solution
The given reaction is shown below.
The given concentrations and rate are shown below.
The ratio of rate of the reaction of reactant is expressed as,
Where,
•
•
•
•
•
•
•
•
Substitute first and second columns values for
Hence, the order of reaction with respect to
Substitute second and third columns values for
Hence, the order of reaction with respect to
Hence, the expression for rate law is,
Substitute the first column values for
Thus, the value of
The ratio of rate of the reaction at initial concentration and final concentration of reactant is expressed as,
Where,
•
•
•
•
•
•
Substitute first and second columns values for
Hence, the order of the reaction with respect to
Substitute first and third column values for
Hence, the order of the reaction with respect to
Hence, the expression for rate law is,
Substitute the first column values for
Thus, the value of
The equilibrium constant of a reaction is calculated by the expression as shown below.
Where,
•
•
The forward and reverse rate constant is
Substitute the value of
Hence, the equilibrium constant value of a reaction is
The equilibrium constant value of a reaction is
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Chapter 20 Solutions
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