3.4 Equilibria

Question 1

What is the definition of dynamic equilibrium?

Answer 1

When the rates of forward and reverse reactions are equal

Question 2

What happens to the concentration of reactants and products at equilibrium?

Answer 2

the concentrations of reactants and products remain constant but are rarely equal.

Question 3

What affect will a catalyst have on equilibrium?

Answer 3

The addition of a catalyst increases the rates of the forward and reverse reactions equally. The catalyst increases the rate at which equilibrium is achieved but does not affect the position of equilibrium.

Question 4

If we increase the concentration of a reactant or decrease the concentration of a product in which direction will the equilibrium move?

Answer 4

Equilibrium moves right

Question 5

If we increase the concentration of a product or decrease the concentration of a reactant in which direction will the equilibrium move?

Answer 5

Equilibrium moves left

Question 6

If pressure is increased in which direction will the equilibrium move?

Answer 6

shifts in the direction which reduces the no. of moles in a gaseous state

Question 7

If pressure is decreased in which direction will the equilibrium move?

Answer 7

Shifts in the direction which increases no. of moles in a gaseous state

Question 8

If temperature is increased in which direction will the equilibrium move?

Answer 8

Shifts in the direction of the endothermic reaction

Question 9

If the temperature is decreased in which direction will the equilibrium move?

Answer 9

Shifts in the direction of the exothermic reaction