10 Flashcards

1
Q

Dynamic equilibrium

A

Dynamic equilibrium is set up when the rate of the forward reaction is equal to the rate of the reverse reaction.

The relative concentrations of the reactants and products remain CONSTANT

Only occurs in a fixed system.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Le chateliers principle

A

If the conditions of dynamic equilibrium in a closed system are changed, the equilibrium shifts to oppose that change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Effect of catalyst on equilibrium

A

A catalyst has NO EFFECT on the position of equilibrium

However, a system will reach equilibrium more quickly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Changes in concentration

A

Shifts right (favours products):

  • If reactant is increased
  • If product is decreased

Shifts left: (favours reactants):

  • If reactant is decreased
  • If product is increased
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Changes in pressure

A

Only affects dynamic equilibria that contains at least ONE GAS

An increase in pressure favours the side with the fewest moles of gas.

A decrease in pressure favours the side with the GREATEST no of moles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Changes in temperature

A

An INCREASE in temp favours the ENDOTHERMIC reaction

A DECREASE in temp favours the exothermic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly