MDCAT Chemistry MCQ #4306

The temperature at which the rms speed of H2 is the same as that of O2 at 300 K is

MDCAT Chemistry MCQ #4306

  1. Question 1

    Q1. The temperature at which the rms speed of H2 is the same as that of O2 at 300 K is

    • A) 18.75 K
    • B) 37.5 K
    • C) 75 K
    • D) 150 K

    Answer: 18.75 K

    Explanation: urms = √(3RT/M). Setting urms(H2) = urms(O2) gives T(H2) = 18.75 K. Option B is incorrect temperature.