Le Chatelier's 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 and restore a new equilibrium.

Front

What happens to the equilibrium when a reactant is removed?

Back

The equilibrium will shift to the left to produce more reactants.

Front

What effect does increasing pressure have on a gaseous equilibrium?

Back

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

Front

How does temperature affect the position of equilibrium in an exothermic reaction when heat is added?

Back

Adding heat to an exothermic reaction shifts the equilibrium to the left, favoring the reactants.

Front

What is the effect of adding a catalyst to a chemical equilibrium?

Back

Adding a catalyst does not change the position of equilibrium; it only speeds up the rate at which equilibrium is reached.

Front

What is the effect of increasing the concentration of products in a reaction at equilibrium?

Back

Increasing the concentration of products will shift the equilibrium to the left, favoring the reactants.

Front

In the reaction Fe⁺³ + SCN ↔ FeSCN²⁺, what happens if more Fe⁺³ is added?

Back

The equilibrium will shift to the right, producing more FeSCN²⁺ and resulting in a deeper red color.

Front

What is the effect of decreasing the temperature in an endothermic reaction?

Back

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

Front

How does the addition of an inert gas at constant volume affect the equilibrium?

Back

Adding an inert gas at constant volume does not affect the position of equilibrium.

Front

What is the relationship between equilibrium constant (K) and temperature?

Back

The equilibrium constant (K) is temperature-dependent; changing the temperature will change the value of K.