JEE Main Chemistry question
In the reaction C(s) + CO₂(g) ⇌ 2CO(g), the equilibrium pressure is 12 atm. If 50% of CO₂ reacts, Kp for the change is:
Answer: (B)
Solution
Initial CO₂ = P₀; at eq. CO₂=0.5P₀, CO=P₀, total = 1.5P₀=12 → P₀=8. Kp = ²/₂ = 8²/4 = 16 atm.