EQUILIBRIUM

Question 1

How to figure out Kc in a heterogeneous reaction

Answer 1

Do not include solids and pure liquids in the Kc expression as their concentrations remain constant

Question 2

ICE acronym for working out concentration at equilibrium

Answer 2

Initial moles
Change in moles
Equilibrium moles

Question 3

What does the Kp expression look like and how would heterogeneous differ

Answer 3

Still products over reactants, but rather than concentration, it consists of partial pressures

In heterogeneous, only include gases in the expression

Question 4

How to work out partial pressures given moles

Answer 4

find out amount of moles of each at equilibrium

then find mole fraction

partial pressure = mole fraction x total pressure

Question 5

How does temperature effect the value of Kp

Answer 5

If temp change causes equilibrium to shift right then Kp will increase

opposite happens if equilibrium shifts left