Chemical Equilibrium

Front

What is chemical equilibrium?

Back

A state in a reversible reaction where the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products.

Front

What does it mean if the equilibrium shifts to the left?

Back

The concentration of reactants increases while the concentration of products decreases.

Front

What does it mean if the equilibrium shifts to the right?

Back

The concentration of products increases while the concentration of reactants decreases.

Front

What is Le Chatelier's Principle?

Back

If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change.

Front

How does temperature affect equilibrium in exothermic reactions?

Back

Cooling an exothermic reaction favors the forward reaction, producing more products.

Front

How does temperature affect equilibrium in endothermic reactions?

Back

Heating an endothermic reaction favors the forward reaction, producing more products.

Front

What is the equilibrium constant (K_eq)?

Back

A numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium.

Front

What does K_eq < 1 indicate?

Back

There are more reactants than products at equilibrium.

Front

What does K_eq > 1 indicate?

Back

There are more products than reactants at equilibrium.

Front

What happens to the concentration of N2 if NO is removed from the reaction N2 + O2 <-> 2NO?

Back

The concentration of N2 will decrease.