Answer to Question #204770 in Chemistry for Master j

Question

This question is related to the equilibrium reaction below:

H₂(g) + F₂(g) ⇌ 2HF (g),ΔH = -542 kJmol^-1

i. The following stresses are applied to the equilibrium:

1. the temperature is increased,

2. a catalyst is added,

3. the concentration of HF is reduced,

4. the volume is decreased.

Answer 1

1. the temperature is increased - velocity of the forward reaction goes up

2. a catalyst is added - velocity of the forward reaction goes up

3. the concentration of HF is reduced - velocity of the forward reaction goes up

4. the volume is decreased - velocity of the reverse reaction goes up