Reaction Equilibrium

Front

What is Reaction Equilibrium?

Back

Reaction equilibrium is the state in a chemical reaction where the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products.

Front

What happens to equilibrium when the volume of a container is decreased?

Back

Decreasing the volume of a container shifts the equilibrium to the side with fewer moles of gas.

Front

Define an endothermic reaction.

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, usually in the form of heat.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy to its surroundings, usually in the form of heat.

Front

What are the three main factors that affect chemical equilibrium?

Back

The three main factors that affect chemical equilibrium are temperature, pressure, and concentration.

Front

What does it mean when a reaction is at equilibrium?

Back

A reaction is at equilibrium when the concentrations of reactants and products remain constant over time.

Front

What is the equilibrium constant (K)?

Back

The equilibrium constant (K) is a numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium, each raised to the power of their coefficients in the balanced equation.

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

Back

Increasing the temperature of an exothermic reaction shifts the equilibrium to the left, favoring the reactants.

Front

What is the effect of increasing concentration of reactants on equilibrium?

Back

Increasing the concentration of reactants shifts the equilibrium to the right, favoring the formation of products.