Consider the following equilibrium system:

C₍ₛ₎ + CO₂ ₍₎ → 2CO₍₎ ∆H⁰ᵣ= +120 kJ

explain the changes that would occur when the following stresses are applied or removed for this reaction.
⦁ CO is removed.
⦁ Heat is added.
⦁ CO₂ is added.
⦁ Heat is removed.