Equilibrium and Temperature Effects

These flashcards cover the fundamental concepts of equilibrium, equilibrium constants, and the effects of temperature and concentration changes on these constants.

What happens to the equilibrium constant (Kc) of an exothermic reaction when the temperature is increased?

The value of the equilibrium constant decreases.

In an exothermic reaction, what direction does the equilibrium shift when temperature is increased?

The equilibrium shifts to the left.

How does raising the temperature affect the equilibrium constant of an endothermic reaction?

The value of the equilibrium constant increases.

What direction does the equilibrium shift in an endothermic reaction when temperature is increased?

The equilibrium shifts to the right.

Which factor is the only one that can change the value of an equilibrium constant?

Temperature.

If the concentration of a reactant is increased, what must happen to maintain the equilibrium constant?

The equilibrium will shift to the right, decreasing reactant concentration and increasing product concentration.

What happens when the concentration of a product is increased in a reaction at equilibrium?

The equilibrium shifts to the left to maintain the Kc value.

What is the significance of the rule in relation to changes in concentration at equilibrium?

Changing the concentration of reactants or products does not affect the equilibrium constant value, provided the temperature remains constant.