MDCAT Chemistry MCQ #5138

The rate of a reaction is given by rate = k[A]. If the concentration of A is doubled, the rate increases by a factor of

MDCAT Chemistry MCQ #5138

  1. Question 1

    Q1. The rate of a reaction is given by rate = k[A]. If the concentration of A is doubled, the rate increases by a factor of

    • A) 2
    • B) 4
    • C) 1/2
    • D) 1

    Answer: 2

    Explanation: For first-order reactions, rate is directly proportional to [A], so doubling [A] doubles the rate.