
Interpretation:
From the equilibrium reaction of Hydrogen iodide with Hydrogen and Iodine, the cases at which the concentration of
Concept Introduction:
Equilibrium constant
Equilibrium constant
Consider the reaction where A reacts to give B.
On rearranging,
Where,
Reaction Quotient:
Reaction quotient, Q is the ratio between product of the product concentration to the product of the reactant concentration with each term raised to the power of its balancing coefficient.
Consider a general equation,
Where a, b, c and d are the stoichiometric coefficients. The reaction quotient is,
The concentration of solids and pure liquids do not change, so their concentration terms are not included in the reaction quotient expression.
Comparison of
When
When
When

Explanation of Solution
Given information,
Volume of flask is
Equilibrium constant value for the reaction,
Case a:
Calculate the
Compare
Therefore, in case a, the concentration of
Case b:
Calculate the
Compare
Therefore, in case b, the concentration of
Case c:
Calculate the
Compare
Therefore, in case c, the concentration of
Case d:
Calculate the
Compare
Therefore, in case d, the concentration of
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Chapter 12 Solutions
Chemistry: The Molecular Science
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