Question

3. How is the equilibrium position of this reaction affected

by the following changes?
2802 (g) + O2 (g) <-------------→ 2 S03(g) + heat
a. Lowering the temperature.
b. Decreasing the pressure
c. Removing oxygen
d. Adding sulfur trioxide (SO3).

Answer 1

Explanation: a) Reaction is exothermic because heat is released

If temperature is lowered, amount of products is increased,

equilibrium transfers to right

b) If pressure decreases, equilibrium transfers to direction in which amount of gas moles is greater, also in left (reactants)

c) If Oxygen is removed, reaction which produces more oxygen is favoured, also balance changes to reactansts (left)

d) Adding product causes equilibrium transfer to left (reactansts)