Topic 3- Equilibrium

Question 1

At equilibrium, what are the concentration of the reactants and products?

Answer 1

At equilibrium, the concentrations of reactants and

products remain constant, but are rarely equal.

Question 2

What is the effect on the equilibrium when the pressure is increased?

Answer 2

The equilibrium shifts in the direction of less gas.

Question 3

What is the effect on the equilibrium when the pressure is decreased?

Answer 3

The equilibrium shifts in the direction of more gas.

Question 4

What is the effect on the equilibrium when the temperature is increased?

Answer 4

The equilibrium shifts in the direction of the endothermic reaction.

Question 5

What is the effect on the equilibrium when the temperature is decreased?

Answer 5

The equilibrium shifts in the direction of the exothermic reaction.

Question 6

What is the effect on the equilibrium when a catalyst is used?

Answer 6

no effect on the equilibrium , a catalyst increases the rate of attainment of equilibrium

Question 7

What is the effect on the equilibrium when a reactant is added/a product is removed?

Answer 7

shifts to the right.

Question 8

What is the effect on the equilibrium when a product/a reactant is removed?

Answer 8

shifts to the left.

Question 9

When is a reaction said to have reached a state dynamic equilibrium?

Answer 9

when the rate of the forward reaction is equal to the rate of the reverse reaction.