Chemical equilibrium

Front

What does the symbol ⇌ indicate in a chemical reaction?

Back

It indicates that the reaction is reversible.

Front

What is the equilibrium-constant expression for the reaction CO₂(g) + H₂(g) ⇌ CO(g) + H₂O(l)?

Back

Kc = [CO] / [CO₂][H₂]

Front

What does it mean for a chemical reaction to be in equilibrium?

Back

There is no net change in the concentrations of reactants and products.

Front

When the rate of the forward reaction equals the rate of the backward reaction, what is this state called?

Back

Chemical Equilibrium.

Front

What is the definition of a reversible reaction?

Back

A reaction that can proceed in both the forward and backward directions.

Front

What is the difference between dynamic equilibrium and static equilibrium?

Back

Dynamic equilibrium involves ongoing processes with no net change, while static equilibrium involves no movement or change.

Front

What factors can affect the position of equilibrium in a chemical reaction?

Back

Concentration, temperature, and pressure.

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 the temperature affect an exothermic reaction at equilibrium?

Back

It shifts the equilibrium position to favor the reactants.

Front

What is the significance of the equilibrium constant (K)?

Back

It quantifies the ratio of concentrations of products to reactants at equilibrium.