Podcast
Questions and Answers
Which of the following is NOT a necessary condition for chemical equilibrium?
Which of the following is NOT a necessary condition for chemical equilibrium?
- Presence of a catalyst (correct)
- Constant temperature
- Equal concentrations of reactants and products
- Closed system
What is the effect of increasing the concentration of a reactant in a reversible reaction at equilibrium?
What is the effect of increasing the concentration of a reactant in a reversible reaction at equilibrium?
- Equilibrium shifts towards the right (forward) (correct)
- Equilibrium shifts towards the left (reverse)
- Equilibrium is disrupted
- No effect on the equilibrium
Which of the following is affected by changes in pressure in a reversible reaction at equilibrium?
Which of the following is affected by changes in pressure in a reversible reaction at equilibrium?
- Gaseous equilibria (correct)
- Solid equilibria
- Liquid equilibria
- All types of equilibria
What does Le Chatelier's principle state?
What does Le Chatelier's principle state?
How does increasing the concentration of a product in a reversible reaction at equilibrium affect the equilibrium?
How does increasing the concentration of a product in a reversible reaction at equilibrium affect the equilibrium?
Study Notes
Chemical Equilibrium
- A necessary condition for chemical equilibrium is not reached when the reaction rates are not equal and opposite.
Effect of Concentration Changes
- Increasing the concentration of a reactant in a reversible reaction at equilibrium shifts the equilibrium to the right, favoring the forward reaction.
- Increasing the concentration of a product in a reversible reaction at equilibrium shifts the equilibrium to the left, favoring the reverse reaction.
Effect of Pressure Changes
- The yield of the reaction is affected by changes in pressure in a reversible reaction at equilibrium.
Le Chatelier's Principle
- Le Chatelier's principle states that when a system in equilibrium is subjected to a change, the equilibrium will shift in a direction that tends to counteract the change.
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Description
Test your knowledge of Le Chatelier's Principle and its application to chemical equilibrium. Learn about the necessary conditions for equilibrium and how to recognize it. Explore the effects of catalysts, temperature, pressure, and concentration on reversible reactions at equilibrium.
