3.10 Kp

Question 1

What is Kp, and what does it do?

Answer 1

Kp provides an alternative method of calculating the equilibrium constant for a reaction in the gas phase by using the contribution of each substance to the overall pressure of the system

Question 2

What is the mole fraction?

Answer 2

The mole fraction (X) is the ratio of moles of one substance in a mixture to the total number of all substances

Question 3

Give a general equation of how you calculate mole fraction ?

Answer 3

Moles of one species / the sum of the moles of all species

Question 4

How do you calculate the partial pressure of a species?

Answer 4

Partial pressure (P) = Mole fraction (X) x Total pressure

Question 5

How do you calculate the equilibrium constant (Kp)

Answer 5

For the reaction aA + bB <=> cC + dD
Kp = (PCc x PDd) / (PAa x PBb)
Where PD is partial pressure of D, and d is number of moles

Question 6

What is Kp only affected by?

Answer 6

Temperature