Chemical Equilibrium

Question 1

What is dynamic equilibrium?

Answer 1

Exists in a closed system when the rate of the forward reaction equals the rate of the backward reaction, and conc of reactants and products do not change

Question 2

Outline le Chatelier’s principle

Answer 2

States when any change is made to conditions of a dynamic equilibrium, POE moves in the direction that minimises the change

Question 3

Will adding or removing a catalyst cause any change to the POE?

Answer 3

No as it would just increase or decrease the rate of both reactions

Question 4

What would happen when increasing temperature of a dynamic equilibrium?

Answer 4

POE move in the direction that absorbs heat so endothermic

Question 5

What would happen when decreasing temperature of a dynamic equilibrium?

Answer 5

POE move in the direction that releases heat so exothermic

Question 6

What would happen when increasing pressure of a dynamic equilibrium?

Answer 6

POE move in the direction that decreases pressure so direction giving fewer gas molecules