engineering chemistry MCQ #4907

The decomposition of N2O5 is a first-order reaction with k = 0.001 s^-1 at 25°C. The half-life is

engineering chemistry MCQ #4907

  1. Question 1

    Q1. The decomposition of N2O5 is a first-order reaction with k = 0.001 s^-1 at 25°C. The half-life is

    • A) 693 s
    • B) 1000 s
    • C) 500 s
    • D) 2000 s

    Answer: 693 s

    Explanation: For first-order, t1/2 = 0.693 / k = 0.693 / 0.001 = 693 s.