Equilibrium

Question 1

Open system?

Answer 1

-Open to atmosphere

-Gain or lose mass and energy across boundary

-Most reactions done in open system

Question 2

Closed system?

Answer 2

-Not open to atmosphere

-Energy can cross boundary, but mass cannot

Question 3

When do Closed systems reach equilibrium?

Answer 3

When the forward and reverse reactions occur at the same rate.

Question 4

What does it mean when Equilibrium shifts to the right?

Answer 4

It favours the forward reaction snd you make more of the products.

Question 5

What does it mean when Equilibrium shifts to the left?

Answer 5

It favours the reverse reactions and you make more of the reactants.

Question 6

Effects of Increasing pressure?

Answer 6

if we Increase pressure the position of equilibrium shifts to the side with the least gas molecules, producing more of it

Question 7

Effects of reducing Pressure?

Answer 7

Position of equilibrium shifts to the side with the most gas molecules, producing more of it

Question 8

Effects of increasing Temperature?

Answer 8

Position of equilibrium will shift in the endothermic direction producing more of it.

Question 9

Effects of Decreasing Temperature?

Answer 9

Position of equilibrium will shift in the exothermic direction producing more of it.

Question 10

Effects of Increasing concentration?

Answer 10

Position of equilibrium shifts away from it.

Question 11

Effects of decreasing concentration?

Answer 11

Position of equilibrium will shift towards it.

Question 12

Effect if adding a catalyst?

Answer 12

No effect (Rate of the forward and reverse reactions to increase by the same amount).