Equilibrium II Flashcards
1
Q
What is Kp?
A
The constant calculated in terms of partial pressure
2
Q
How do you work out Kp?
A
Kp = PC^c x PD^d / PA^a x PB^b
3
Q
What does the value for Kp mean?
A
If the value of Kp is small, it means that the equilibrium position lies over to the left, so there will be more reactants present
4
Q
What happens to the equilibrium constants when you change the temperature?
A
They change
Increase: the value of Kp falls. This is because as the temperature increases the equilibrium position shifts over to the left hand side, as the reverse endothermic reaction is favoured. More reactants and less products
5
Q
What happens to the equilibrium constants when you use a catalyst?
A
No change
- Speeds up both the forward and back reactions by exactly the same amount.
