AP Chemistry - Unit 7 - Thou Shall Not Forget

Front

What happens to the K value when the coefficient of a reaction is multiplied by a factor x?

Back

The K value is raised to the power x.

Front

In an exothermic reaction at equilibrium, what happens to the concentration of B when the temperature is increased?

Back

The concentration of B will increase the most.

Front

What is true about the concentrations of reactants and products at equilibrium?

Back

They are constant.

Front

What happens to the K value when a reaction at equilibrium is reversed?

Back

The K value is inverted.

Front

What must a system at equilibrium have?

Back

Must have reactants and products.

Front

Define equilibrium in a chemical reaction.

Back

Equilibrium is the state where the concentrations of reactants and products remain constant over time.

Front

What is Le Chatelier's Principle?

Back

If a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to counteract that change.

Front

How does increasing pressure affect a gaseous equilibrium?

Back

The equilibrium will shift towards the side with fewer moles of gas.

Front

What is the effect of adding a catalyst to a reaction at equilibrium?

Back

A catalyst speeds up the rate of both the forward and reverse reactions equally, but does not change the position of equilibrium.

Front

What does a large K value indicate about a reaction?

Back

A large K value indicates that the products are favored at equilibrium.