Reference no: EM132542769

Le Chatelier's Principle Questions:

WARM UP:

When the volume of the hydrogen chloride (HCl) is increased, what will be the effect on the equilibrium position and why? (Hint: increasing volume of a closed system = reduction in pressure):

4HCl+ O2 ↔ 2H2O+ 2Cl2

Questions

1) For the reaction below, which change would cause the equilibrium to shift to the right (tick all that apply)?

2HgO ↔ Hg+ O2

Increase pressure

Decrease pressure

Increase concentration of mercury (Hg)

Increase concentration of mercury oxide (HgO)

Remove Oxygen (O2)

2) For the reaction below, which change would cause the equilibrium to shift to the left (tick all that apply)?
2SO3 ↔ 2SO2 + O2 ΔH = +198.4 KJmol-1

Sulfur dioxide (SO2) is added to the system.

Oxygen (O2) is removed from the system.

Increase the temperature of the system.

Sulfur trioxide is added to the system.

Decrease the temperature of the system.

Increase pressure of the system.

3) For the reaction below, which change would cause the equilibrium to shift to the right (tick all that apply)?

CH4+ 2H2S ↔ CS2 + 4H2 ΔH = +138 KJmol-1

Decrease the concentration of dihydrogen sulfide (H2S).

Increase the pressure on the system.

Increase the temperature of the system.

Increase the concentration of carbon disulfide (CS2).

Decrease the concentration of methane.