Le Chateliers Principle

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 the concentration of a reactant is increased?

Back

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

Front

What effect does decreasing the concentration of a product have on equilibrium?

Back

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

Front

How does increasing pressure affect gaseous equilibria?

Back

Increasing pressure shifts the equilibrium towards the side with fewer moles of gas.

Front

What is the effect of increasing temperature on an exothermic reaction at equilibrium?

Back

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

Front

What is the effect of decreasing temperature on an endothermic reaction at equilibrium?

Back

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

Front

What does it mean for a reaction to go to completion?

Back

A reaction goes to completion when the reactants are fully converted into products, and no reactants remain.

Front

What is the role of a catalyst in a chemical reaction?

Back

A catalyst speeds up the rate of a reaction without being consumed, but it does not affect the position of equilibrium.

Front

What is an example of a system at equilibrium?

Back

A mixture of nitrogen gas and hydrogen gas forming ammonia gas in a closed container.

Front

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

Back

The equilibrium constant (K) quantifies the ratio of concentrations of products to reactants at equilibrium.