Kp

Question 1

What is a homogenous reaction?

Answer 1

All the reactants and products are in the same state

Question 2

What is a homogenous system?

Answer 2

All reactants and products are in the same phase

Question 3

What is the difference between a state and a phase? Give an example

Answer 3

They are very similar but with some exceptions- water and oil are both in liquid state but do are immiscible so are classed as a different phase

Question 4

Define partial pressure

Answer 4

The contribution one gas makes towards the overall pressure

Question 5

How do you calculate pp and mole fraction of x

Answer 5

pp= Mole fraction x Total pressure
mf of x= Moles of x/total number of moles

Question 6

What should all moles fractions in a mixture add up to?

Answer 6

1

Question 7

How do you write an expression of kp. Use x and ys in your answer

Answer 7

kp= [pX][pY]/[pN]

Question 8

Features of the kp, what do its values suggest

Answer 8

If greater than 1 it means that the equilibrium is towards the right hand side so more products than reactants
If less than 1- equilibrium is towards the left and there are more reactants than products
If exactly 1 it means that equilibrium is in the middle so equal amounts of products and reactants

Question 9

What conditions causes the value of kp to change

Answer 9

an change in temperature