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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 · Q41 of 120

Geo-Scientist Prelims 2025 Chemistry Q41: Consider the following statements regarding gas molecules :…

QuestionGaseous state / kinetic theory

Consider the following statements regarding gas molecules :
Statement 1 : Heavier gas molecules move more slowly than light gas molecules.
Statement 2 : The average kinetic energy of gas molecules is independent of the mass.

Which one of the following is correct in respect of above statements ?

  1. (a) Both statement 1 and statement 2 are true and statement 2 is the correct explanation of statement 1.
  2. (b) Both statement 1 and statement 2 are true but statement 2 is not the correct explanation of statement 1.
  3. (c) Statement 1 is true but statement 2 is false.
  4. (d) Statement 1 is false but statement 2 is true.

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