Le Chatelier's Principle Intro

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 is meant by 'dynamic equilibrium'?

Back

Dynamic equilibrium occurs when the rate of the forward reaction equals the rate of the reverse reaction, resulting in constant concentrations of reactants and products.

Front

How does temperature affect equilibrium?

Back

Changing the temperature can shift the position of equilibrium; for exothermic reactions, increasing temperature shifts equilibrium to the left, while for endothermic reactions, it shifts to the right.

Front

What is the effect of removing a product from a reaction at equilibrium?

Back

Removing a product will shift the equilibrium to the right, favoring the formation of more products.

Front

What is the effect of increasing pressure on a gaseous equilibrium?

Back

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

Front

What does it mean to shift equilibrium to the left?

Back

Shifting equilibrium to the left means that the reaction favors the formation of reactants over products.

Front

What does it mean to shift equilibrium to the right?

Back

Shifting equilibrium to the right means that the reaction favors the formation of products over reactants.

Front

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

Back

A catalyst speeds up both the forward and reverse reactions equally, allowing equilibrium to be reached faster without affecting the position of equilibrium.

Front

What is an example of a reaction that can reach equilibrium?

Back

The reaction between nitrogen and hydrogen to form ammonia: N2(g) + 3H2(g) ⇌ 2NH3(g).