engineering chemistry MCQ #3422

The ratio of the rates of diffusion of two gases is equal to the inverse ratio of the square roots of their molecular weights. If the molecular weights of two gases are 16 and 64, the ratio of their rates of diffusion is:

engineering chemistry MCQ #3422

  1. Question 1

    Q1. The ratio of the rates of diffusion of two gases is equal to the inverse ratio of the square roots of their molecular weights. If the molecular weights of two gases are 16 and 64, the ratio of their rates of diffusion is:

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

    Answer: 2 / 1

    Explanation: Rate ratio = √(64 / 16) = √4 = 2 / 1.