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JEE Main & Advanced Physics Kinetic Theory of Gases Question Bank Self Evaluation Test - Kinetic Theory

  • question_answer
      If the molecules in a tank of hydrogen have the same RMS speed as the molecules in another tank of oxygen, we may be sure that

    A) the pressures are the same

    B) the hydrogen is at the higher temperature

    C) the temperatures are the same

    D) the oxygen is at the higher temperature

    Correct Answer: D

    Solution :

    [d] \[{{V}_{rms}}=\sqrt{\frac{3RT}{M}}\] Same\[{{V}_{rms}}\], implies \[\frac{T}{M}\] same. Hence, \[\text{T}\propto M\] M for oxygen is more than that of hydrogen, therefore, oxygen is at higher temperature than hydrogen.


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