Equilibrium

Question 1

What is dynamic equilibrium?

Answer 1

● equilibrium:
o rate of forward reaction = rate of backward reaction
o concentration of reacting substances stay the same
● dynamic equilibrium:
o once the forward and backward reaction reach equilibrium, they keep
going

Question 2

equation for haber process:

Answer 2

nitrogen + hydrogen ⇌ ammonia

Question 3

what are the optimum temperatures for the haber process?

Answer 3

450 degrees
200 atmospheres
iron core

Question 4

affect of concentration on dynamic equilibrium.

Answer 4

o If concentration of reactants is increased : position of equilibrium shifts
towards products (right) so more product is produced until equilibrium is
reached again
o if concentration of products is increased : position of equilibrium shifts
towards reactants (left) so more reactant is produced until equilibrium is
reached again

Question 5

how does pressure affect dynamic equilibrium?

Answer 5

an increase in pressure will favour the product with fewer moles, increasing it’s yield.

Question 6

how does temperature affect dynamic equilibrium?

Answer 6

● If temperature is increased : equilibrium moves in the direction of the
endothermic reaction (e.g. if forwards reaction is endothermic and
temperature is increased, equilibrium shifts right to produce more
product)
● If temperature is decreased : equilibrium moves in the direction of the
exothermic reaction