Question

which direction does this reaction shift when more i₂ is added? 51.8 kj + h₂(g) + i₂(g) ⇌ 2hi(g) the reaction does not shift. the reaction shifts left or to reactants. the reaction shifts right or to products.

Explanation:

Step1: Recall Le Chatelier's Principle

Le Chatelier's Principle states that if a stress is applied to a system at equilibrium, the system will shift in a direction that relieves the stress. The stress here is the addition of more \( I_2(g) \) (a reactant).

Step2: Analyze the Effect of Adding \( I_2 \)

When more \( I_2(g) \) (a reactant) is added, the system will try to consume the excess reactant to re - establish equilibrium. To consume the excess \( I_2 \), the reaction will proceed in the forward direction (towards the products), because the forward reaction uses \( H_2 \) and \( I_2 \) to form \( HI \). So the reaction will shift to the right (towards the products).

Answer:

The reaction shifts right or to products.