Understanding Heterogeneous Equilibrium

What is a key characteristic of a heterogeneous equilibrium?

• All reactants and products are in the same phase.

• At least one reactant or product is a pure solid or liquid.

• The reaction only involves gases.

• The reaction only involves liquids.

In the initial expression for the equilibrium constant, why is the concentration of water raised to the second power?

• Because water is a product.

• Because water is a pure liquid.

• Because the coefficient of water in the reaction is 2.

• Because water is a reactant.

Why is the initial expression for the equilibrium constant considered incorrect?

• It includes the concentration of a pure liquid.

• It does not include all reactants.

• It only considers gaseous reactants.

• It omits the concentration of chlorine gas.

What should be omitted from the equilibrium constant expression in a heterogeneous equilibrium?

• All solids and liquids

• Pure solids and pure liquids

• All gases

• All reactants

Why is it important to pay attention to the states of matter in equilibrium reactions?

• They are not important.

• They can change the equilibrium constant expression.

• They affect the temperature of the reaction.

• They determine the reaction rate.