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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper II covers chemistry.

UPSC Combined Geo-Scientist, Prelims · 2025 · Paper II, Chemistry · Q47 of 120

Geo-Scientist Prelims 2025 Chemistry Q47: For any given molecule, the ratio of the average speed ( ū ), root…

QuestionGaseous state / molecular speeds

For any given molecule, the ratio of the average speed ( ū ), root mean square speed (u_rms) and most probable speed (u_mp) is respectively :

  1. (a) 1.60 : 1.73 : 1.41
  2. (b) 1.60 : 1.41 : 1.73
  3. (c) 1.41 : 1.73 : 1.60
  4. (d) 1.73 : 1.60 : 1.41

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