engineering chemistry MCQ #4940

The unit of rate constant for a first-order reaction is

engineering chemistry MCQ #4940

  1. Question 1

    Q1. The unit of rate constant for a first-order reaction is

    • A) s^-1
    • B) M s^-1
    • C) M^-1 s^-1
    • D) M^-2 s^-1

    Answer: s^-1

    Explanation: For a first-order reaction, the rate = k[A], so k has units of time^-1, typically s^-1.