Question

For the reaction, $$ H_2(g) + I_2(g) \rightleftharpoons 2HI(g) $$ Attainment of equilibrium is predicted correctly by: 

• A.
• B.
• C.
• D.

Hint:

At equilibrium, the concentrations of reactants and products become constant, and the reaction rate of the forward and reverse reactions become equal.

Answer 1

The Correct Option is C

- At equilibrium, reactant concentrations (\( H_2 \), \( I_2 \)) decline, and product concentration (\( HI \)) rises over time.
- Upon reaching equilibrium, reactant and product concentrations stabilize. Therefore, a graph showing declining \( H_2 \) and \( I_2 \) concentrations and a rising \( HI \) concentration accurately depicts equilibrium attainment.

Final Answer: Option (3).