3.1.10 Equilibrium Constant Kp for Homogenous Systems

Question 1

What is the partial pressure of a gas?

Answer 1

The pressure that the gas would exert if it alone filled the container

Question 2

How do you calculate the partial pressure of a gas?

Answer 2

Mole fraction of the gas X total pressure

Question 3

How do you calculate the mole fraction of a gas?

Answer 3

Total number of moles

Question 4

What is the equilibrium constant Kp measured in?

Answer 4

Partial pressure

Only applies to reactions involving gases

Question 5

How do you work out Kp?

Answer 5

See card

Question 6

What do you do if there is a solid or liquid reactant or product in a Kp question?

Answer 6

Do not include it in the Kp calculations

Question 7

What is the table for calculating Kp calculations?

Answer 7

Initial moles
Equilibrium moles
Change (proportionate to the stoichiometry)
Mole fraction (divide by the total number of moles)
Partial pressure (multiply by the total pressure of the system)

Question 8

What are the units of Kp?

Answer 8

kPa put into the Kp equation