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JEE Main20241 Feb 2024Evening ShiftPhysicsKinetic Theory of GasesActual

If the root mean square velocity of hydrogen molecule at a given temperature and pressure is 2 km s - 1 , the root mean square velocity of oxygen at the same condition in km s - 1 is:

Options

  1. A2 . 0
  2. B0 . 5
  3. C1 . 5
  4. D1 . 0

Correct answer

B. 0 . 5

Step-by-step solution

Root mean square velocity is given by, V r m s = 3 R T M Therefore, V 1 V 2 = M 2 M 1 ⇒ 2 V 2 = 32 2 ⇒ V 2 = 0 . 5 km s - 1

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