Equilibrium Honors

Front

What is the equilibrium constant (K_eq) for the reaction 2 NO_(g) + O_2(g) ⇌ 2 NO_2(g)?

Back

Front

What happens to the equilibrium when SO₃(g) is added to the reaction 2 SO₂(g) + O₂(g) ⇌ 2 SO₃(g)?

Back

The equilibrium shifts to the left.

Front

Which statement is NOT true at equilibrium?

Back

The concentration of the reactants is equal to the concentration of the products.

Front

True or False: At equilibrium, the rate of the forward reaction and the rate of the reverse reaction are equal to zero.

Back

False.

Front

What is the equilibrium expression for the reaction Fe₃O₄(s) + 4 H₂(g) ⇌ 3 Fe(s) + 4 H₂O(g)?

Back

Front

Define dynamic equilibrium in the context of chemical reactions.

Back

Dynamic equilibrium occurs when the rates of the forward and reverse reactions are equal, 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 increasing the concentration of reactants affect the equilibrium position?

Back

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

Front

What effect does increasing temperature have on an exothermic reaction at equilibrium?

Back

Increasing temperature shifts the equilibrium position to the left, favoring the reactants.

Front

What is the significance of the equilibrium constant (K_eq) value?

Back

The value of K_eq indicates the extent of the reaction; a large K_eq favors products, while a small K_eq favors reactants.