Equilibrium

Question 1

A reversible Reaction

Answer 1

The product reacts to give back the reactants (i.e goes both directions)

Question 2

Dynamic State

Answer 2

The reactants are continously forming products and the products are continously forming reactants

Question 3

Chemical Equilbrium

Answer 3

A state of dynamic balance in a reversable reaction where the state of the forward reaction is the same as the rate of the reverse reaction

Question 4

Haber Bosch Process

Answer 4

N2 + 3H2 = 2NH3

When haber bosch process is in dynamic equilibrium all three substances are constantly being formed however the concentration of the substances remains constant

Question 5

Le chatelier’s principle

Answer 5

If a stress is a applied to a system at equilbrium, the system moves in such a way as to relieve the stress

Causes of Stress
1) Change in temperature
2) Change in pressure
3)Change in concentration

Question 6

Le Chatelier:Temperature

Answer 6

Increasing T, Equilibrium shifts in endothermic reaction
2) Decreasing T, equilibrium shift in exothermic reaction

Question 7

Le Chatelier: Pressure

Answer 7

Increase in pressure, equilibrium shifts to side with fewest number of moles

Question 8

Le Chatelier: Concentration

Answer 8

Increase C, Equilibrium shifts to other side and reduces C to reduce stress
Decrease C, equilibrium shifts to side C was on to reduce stress

Question 9

Equilibrium : Catalyst

Answer 9

-No effect on equilibrium
-Speeds up rate at which system reaches equilibrium
-Catalyst affects both sides equally so has no effect on equilibrium position