Le Chatelier

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 position of equilibrium shifts to counteract the change.

Front

What happens to equilibrium when a reactant is added?

Back

The position of equilibrium shifts to the right, favoring the formation of products.

Front

What happens to equilibrium when a product is added?

Back

The position of equilibrium shifts to the left, favoring the formation of reactants.

Front

How does increasing temperature affect an exothermic reaction at equilibrium?

Back

Increasing temperature shifts the equilibrium to the left, favoring the reactants.

Front

How does increasing temperature affect an endothermic reaction at equilibrium?

Back

Increasing temperature shifts the equilibrium to the right, favoring the products.

Front

What is the effect of decreasing pressure on a gaseous equilibrium with more moles of gas on the reactant side?

Back

Decreasing pressure shifts the equilibrium to the right, favoring the formation of products.

Front

What is the effect of adding a catalyst to a reaction at equilibrium?

Back

Adding a catalyst speeds up the rate of both the forward and reverse reactions equally, but does not change the position of equilibrium.

Front

What happens to equilibrium when a solvent is added to a reaction?

Back

The position of equilibrium may shift depending on the concentration of reactants and products, but generally, it dilutes the system.

Front

What is the effect of adding OH- ions to a reaction that produces H+ ions?

Back

Adding OH- ions will shift the equilibrium to the right, favoring the formation of products, as it removes H+ ions.

Front

What is the effect of increasing concentration of a reactant on equilibrium?

Back

Increasing the concentration of a reactant shifts the equilibrium to the right, favoring the formation of products.