Equilibrium Review

Front

What is equilibrium in a chemical reaction?

Back

Equilibrium is the state in which the forward and reverse reaction rates are equal, resulting in constant concentrations of reactants and products.

Front

What does a double arrow (⇌) in a chemical equation indicate?

Back

It indicates that the reaction is reversible, meaning that products can form reactants and vice versa.

Front

What are the characteristics of a system at equilibrium?

Back

At equilibrium, the concentrations of reactants and products remain constant over time, and the rates of the forward and reverse reactions are equal.

Front

What is the significance of the equilibrium constant (K)?

Back

The equilibrium constant (K) quantifies the ratio of the concentrations of products to reactants at equilibrium, providing insight into the position of equilibrium.

Front

How does temperature affect equilibrium?

Back

Changing the temperature can shift the position of equilibrium according to Le Chatelier's principle, favoring either the forward or reverse reaction depending on whether the reaction is exothermic or endothermic.

Front

What is Le Chatelier's principle?

Back

Le Chatelier's principle states that if a dynamic equilibrium is disturbed by changing the conditions, the system will adjust to counteract the change and restore a new equilibrium.

Front

What is a reactant?

Back

A reactant is a substance that undergoes a chemical change in a reaction to form products.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.

Front

What does it mean for concentrations to be constant at equilibrium?

Back

It means that the rates of the forward and reverse reactions are equal, leading to no net change in the concentrations of reactants and products.

Front

What is the role of catalysts in reaching equilibrium?

Back

Catalysts speed up the rate of both the forward and reverse reactions equally, allowing the system to reach equilibrium faster without affecting the position of equilibrium.