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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 · Q48 of 120

Geo-Scientist Prelims 2025 Chemistry Q48: According to Gay-Lussac’s law, which one of the following relations…

QuestionGaseous state / collision frequency

According to Gay-Lussac’s law, which one of the following relations for the frequency (Z₁₁) of binary collisions of gas molecules at constant volume is correct ?

  1. (a) Z₁₁ ∝ T^{1/2} and Z₁₁ ∝ p^{1/2}
  2. (b) Z₁₁ ∝ T and Z₁₁ ∝ p^{1/2}
  3. (c) Z₁₁ ∝ T² and Z₁₁ ∝ p
  4. (d) Z₁₁ ∝ T² and Z₁₁ ∝ p²

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