
Write the equilibrium constant expressions for

Interpretation:
The equilibrium constant expressions for
Concept introduction:
The chemical equilibrium is a state of a chemical reaction when the rate of forward reaction becomes equal to the rate of reverse reaction and the concentration of the products and reactants becomes constant known as equilibrium concentrations.
According to Dalton’s law, the total pressure of the mixture of nonreactive gases is equal to the partial pressure of individual gases. The pressure utilized by the individual gas is called the partial pressure of that gas.
Equilibrium constant is the ratio of the concentration of reactants and products present in the chemical reaction.
For a general reaction:
The general formula for writing equilibrium expression for the reaction is given as:
Here,
A and B are reactants, C is products, and
For the general reaction:
The general formula for writing equilibrium expression for the reaction is given as:
Here,
A and B are reactants, C and D are products, and
Equilibrium constants of gas phase reaction are written in terms of partial pressures because concentration of gases is directly proportional to partial pressures.
The relationship between
Answer to Problem 19QP
Solution:
(a)
(b)
(c)
(d)
The
Explanation of Solution
a)
The constant expression for the reaction that is applicable only for chemical reactants and products that are in the same section iscalled homogeneous equilibrium. Only gaseous or aqueous species are in equilibrium expression.
In the given reaction, only
Here,
An equilibrium expression contains only gases. The concentration of gases is expressed as partial pressure. The
Here,
b)
The equilibrium expression for the reaction is as follows:
Here,
The
Here,
c)
The equilibrium expression for the reaction is applicable for only
The equilibrium expression for the reaction is as follows:
Here,
The
Here,
d)
The equilibrium expression for the reaction is applicable for both reactants and products because both are in homogeneous equilibrium.
Here,
The
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