Dynamic equilibria (gcse) Flashcards
1
Q
What will the system try to do when you introduce a chnge in environment
A
it will try to counteract the change
2
Q
What direction will it shift, for a decrease in temperature
A
Will shift to favor the exothermic direction
3
Q
Explain decrease in temp for shift to exothermic
A
- shifts to exothermic
- The surroundings then have more energy than they started with so the temperature increases
- to oppose the change
4
Q
What direction will increasing the pressure shift it to
A
Shift to favor the side with fewer molecules
5
Q
Explain shift in equillibria for increase in pressure
A
- increase in pressure
- shifts to side with fewere molecules
- to oppose the change
6
Q
What direction is favored for increase in conc.
A
ALways shifts to the right
7
Q
Explain equilllibria shift for increase in conc.
A
- concentration of a reactant (on the left) is increased
- equilibrium position moves in the direction away from this reactant
- to oppose the change
- more of the products are produced (on the right).
8
Q
How does increasing temp affect endothermic and exothermic yield?
A
- Endothermic - increases yeild
- Exothermic - decrease yield
9
Q
How does decreasing temp affect endothermic and exothermic yield?
A
- Endothermic - decrease yield
- Exothermic - increase yield
