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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 · 2023 · Paper II, Chemistry · Q47 of 120

Geo-Scientist Prelims 2023 Chemistry Q47: Consider the following statements regarding the number of…

QuestionGaseous state / collision frequency

Consider the following statements regarding the number of collisions made by a single molecule (Z₁) in unit time :

  1. It is directly proportional to pressure.
  2. It is inversely proportional to temperature.
  3. It is inversely proportional to square root of temperature.
  4. It is independent of the effect of temperature and pressure.

Which of the statements given above is/are correct ?

  1. (a) 1 and 2
  2. (b) 1 and 3
  3. (c) 3 only
  4. (d) 4 only

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