What is the concentration of 'B' after 25 min? — Chemical Kinetics Chemistry Question

💡 Solution & Explanation

K1 = 0.04, K2 = 0.06 min^-1. [B] = A0 (K1 / (K2 - K1)) (e^-K1t - e^-K2t) = 1.0 × (0.04 / 0.02) × (e^-1.0 - e^-1.5) = 2 × (0.368 - 0.223) = 2 × 0.145 = 0.29 M. Therefore, correct answer is B.