What is the final pressure if the same amount of CO and H₂ as before used, but with no catalyst so t — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

Initial amount of CO = 0.20 moles. Initial amount of H₂ = moles at equilibrium + moles reacted = 0.1 + 0.2 = 0.30 moles. Total initial moles if no reaction occurs = 0.20 + 0.30 = 0.50 moles. Using the ideal gas law: P = nRT/V = (0.50 × 0.0821 × 750) / 2.463 = (0.50 × 61.575) / 2.463 = 30.7875 / 2.463 = 12.5 atm. Therefore, correct answer is D.