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

💡 Solution & Explanation

K1 = 0.04 min^-1. [A] = A0 e^(-K1 t). At t = 25 min, [A] = 1.0 × e^(-0.04 × 25) = e^-1. Given e^-1 = 0.368, [A] = 0.368 M. Therefore, correct answer is B.