engineering chemistry MCQ #4953

For a second-order reaction, the rate constant is 0.1 M^-1s^-1. If the initial concentration is 0.2 M, what is the half-life?

engineering chemistry MCQ #4953

  1. Question 1

    Q1. For a second-order reaction, the rate constant is 0.1 M^-1s^-1. If the initial concentration is 0.2 M, what is the half-life?

    • A) 50 s
    • B) 25 s
    • C) 100 s
    • D) 200 s

    Answer: 50 s

    Explanation: For a second-order reaction, t1/2 = 1 / (k[A0]) = 1 / (0.1 x 0.2).