Le Chatelier's Principle Class notes

Flashcards on Le Chatelier's Principle concepts.

Chemical Equilibrium

Chemical equilibrium is denoted by a double arrow in a chemical equation.

Le Chatelier's Principle

When stress is applied to a system at equilibrium, the equilibrium will shift to relieve the stress.

Adding Reactants

If you add reactants, the equilibrium will shift right, towards products.

Adding Products

If you add products, the equilibrium will shift left, towards reactants.

Removing Products

If you remove products, the equilibrium will shift right, towards products.

Removing Reactants

If you remove reactants, the equilibrium will shift left, towards reactants.

Increasing Temperature (Exothermic)

Increasing temperature in an exothermic reaction shifts the equilibrium left, towards reactants.

Decreasing Temperature (Exothermic)

Decreasing temperature in an exothermic reaction shifts the equilibrium right, towards products.

Increasing Temperature (Endothermic)

Increasing temperature in an endothermic reaction shifts the equilibrium right, towards products.

Decreasing Temperature (Endothermic)

Decreasing temperature in an endothermic reaction shifts the equilibrium left, towards reactants.

Increasing Pressure

Increasing pressure shifts the equilibrium towards fewer moles of gas.

Decreasing Pressure

Decreasing pressure shifts the equilibrium towards more moles of gas.