Equilibrium Flashcards
1
Q
What is the reaction mixture?
A
When all the reactants and products remain constant.
2
Q
What is dynamic equilibrium?
A
The rate of the forwards and backwards reactions are equal.
3
Q
Name 4 conditions that apply to all equilibria.
A
- Only reached in a closed system,
- Equilibrium can be reached from either direction,
- Equilibria is a dynamic process,
- Equilibrium has been reached when the properties of the mixture remain constant over time.
4
Q
What is Le Chatilier’s principle?
A
If a factor effecting the position of an equilibrium is changed, the position of the equilibrium will change to oppose the effect of the change.
5
Q
Which direction does an increase in temperature favour?
A
Endothermic
6
Q
Which direction does a decrease in temperature favour?
A
Exothermic
7
Q
Why do catalysts have no impact on the position of equilibrium?
A
They do not alter the composition of the equilibrium mixture.
8
Q
Equation for the formation of ammonia?
A
N2 + 3H2 –> 2NH3
9
Q
What affects Kc?
A
Temperature only
