Solution: For the below reaction, which of the statements will shift the equilibrium to the left (make more reactants).PCl5 (g) ⇌ PCl3 (g) + Cl2 (g)                 ΔH= 105kJ(i) Cl2 (g) is removed(ii) the temperature is decreased(iii) the volume of the reaction system is increased(iv) PCl3(g) is added.A) (i) and (ii)B) (i) and (iv)C) (i) and (iii)D) (ii) and (iv)E) (iii) and (iv)

Problem

For the below reaction, which of the statements will shift the equilibrium to the left (make more reactants).

PCl(g) ⇌ PCl(g) + Cl2 (g)                 ΔH= 105kJ

(i) Cl2 (g) is removed

(ii) the temperature is decreased

(iii) the volume of the reaction system is increased

(iv) PCl3(g) is added.

A) (i) and (ii)

B) (i) and (iv)

C) (i) and (iii)

D) (ii) and (iv)

E) (iii) and (iv)