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 the equilibrium position when temperature is increased in an exothermic reaction?

Back

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

Front

What happens to the equilibrium position when temperature is increased in an endothermic reaction?

Back

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

Front

How does removing a reactant affect the equilibrium position?

Back

Removing a reactant shifts the equilibrium position to the left, favoring the formation of reactants.

Front

How does adding a product affect the equilibrium position?

Back

Adding a product shifts the equilibrium position to the left, favoring the formation of reactants.

Front

What is the effect of increasing pressure on a system with gaseous reactants and products?

Back

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

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to the surroundings.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from the surroundings.

Front

What is the effect of a catalyst on equilibrium?

Back

A catalyst speeds up the rate of reaching equilibrium but does not change the position of equilibrium.

Front

What does it mean for a reaction to be at equilibrium?

Back

A reaction is at equilibrium when the rates of the forward and reverse reactions are equal, and the concentrations of reactants and products remain constant.