AP Chemistry Equilibrium

Front

What is the relationship between Kc for a forward reaction and Kc for the reverse reaction?

Back

Kc for the reverse reaction is equal to 1 divided by Kc for the forward reaction.

Front

How does an increase in temperature affect the equilibrium of an endothermic reaction?

Back

The equilibrium will shift to the right, favoring the formation of products.

Front

What is the Kc expression for the reaction: 2 NO(g) + O2(g) ⇌ 2 NO2(g)?

Back

Kc = [NO2]^2 / ([NO]^2[O2])

Front

If heat is added to the reaction: heat + N2 + O2 ↔ 2NO, which direction will the equilibrium shift?

Back

The equilibrium will shift to the right.

Front

What happens to the equilibrium when the concentration of SO2 is increased in the reaction: SO2 + O2 ⇄ SO3?

Back

The equilibrium will shift to the right.

Front

Define dynamic equilibrium in the context of chemical reactions.

Back

Dynamic equilibrium occurs when the rate of the forward reaction equals the rate of the reverse reaction, resulting in constant concentrations of reactants and products.

Front

What is Le Chatelier's Principle?

Back

Le Chatelier's Principle states that 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 decreasing the volume of a gaseous reaction at equilibrium affect the position of equilibrium?

Back

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

Front

What is the effect of adding an inert gas to a reaction at equilibrium?

Back

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

Front

Explain the concept of reaction quotient (Q) and its significance.

Back

The reaction quotient (Q) is a measure of the relative concentrations of reactants and products at any point in time, used to predict the direction of the reaction shift.