Equilibrium Flashcards
What two types are equilibria divided into?
Homogenous and heterogenous
What is a homogenous equilibrium?
Equilibrium species are all in the same state
What is a heterogeneous equilibrium?
Equilibrium species are in different states
What are equilibria involving gases usually expressed in?
Kp
What is a mole fraction?
A mole fraction of a gas is the same as its proportion by volume to the total volume of gases in a gas mixture
How do you workout the mole fraction?
Total number of miles
How do you work out partial pressure?
Mole fraction of gas X total pressure
In a Kp expression when do you ignore species?
If they are not gases
What causes the position of the equilibrium to shift?
Concentration
Pressure
Temperature
What does the value of k give?
The exact position of the equilibrium
What causes k to change?
Only a change in temperature
What do catalysts do to a n equilibrium?
Only affect the rate of reaction and not the position of the equilibrium
Equilibrium is reached quicker but the position stays the same
