(a)
Interpretation:Change in concentration of each gas A, B, C, and D on addition of more reactant A should be predicted and justified.
Concept introduction:Le Chatelier’s established the qualitative effects of change in concentration or partial pressure of reactant on reaction equilibrium.
It suggests that if a certain change in concentration of substrates occurs then reaction proceeds so as to minimize the effects of changes. This way the direction of equilibrium can be altered by various changes and yield of the desired product can be enhanced. For example, Le Chatelier’s has improved the synthesis of ammonia by Haber’s process.
The yield of ammonia is increased when ammonia already formed is removed from the reactor that allows for more combination of nitrogen and hydrogen to form more ammonia.
(a)
Explanation of Solution
The equilibrium is indicated as follows:
If the reactants A is added more to the flask the equilibrium will be favored in forward direct towards right in accordance with Le Chatelier’s principle.
When reaction is favored in forward direction then concentration of B shall reduce while concentration of C and D will increases.
(b)
Interpretation: Change in concentration of each gas A, B, C, and D on addition of more reactant D should be predicted and justified.
Concept introduction:Le Chatelier’s established the qualitative effects of change in concentration or partial pressure of reactant on reaction equilibrium.
It suggests that if a certain change in concentration of substrates occurs then reaction proceeds so as to minimize the effects of changes. This way the direction of equilibrium can be altered by various changes and yield of the desired product can be enhanced. For example, the Le Chatelier’s has improved the synthesis of ammonia by Haber’s process.
The yield of ammonia is increased when ammonia already formed is removed from the reactor that allows for more combination of nitrogen and hydrogen to form more ammonia.
(b)
Explanation of Solution
The equilibrium is indicated as follows:
If the reactants D is added more to the flask the equilibrium will be favored in backward direct towards left in accordance with Le Chatelier’s principle.
When reaction is favored in reverse direction then concentration of C shall reduce while concentration of A and B will increases.
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Chapter 6 Solutions
Chemical Principles
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