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Question

At room temperature (270C) the ‘rms’ speed of the molecules of a certain diatomic gas is found to be 1920 ms-1. The gas is

  1. H2
  2. F2
  3. O2
  4. Cl2

The correct answer is: H2


    v subscript r m s end subscript equals square root of fraction numerator 3 R T over denominator M end fraction end root

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