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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 · 2021 · Paper II, Chemistry · Q55 of 120

Geo-Scientist Prelims 2021 Chemistry Q55: For the reaction H₂F₂(g) → H₂(g) + F₂(g), ΔH is equal to:

QuestionThermodynamics / ΔH and ΔE

For the reaction H₂F₂(g) → H₂(g) + F₂(g), ΔH is equal to:

  1. (a) ΔE + 2RT
  2. (b) ΔE – 2RT
  3. (c) ΔE
  4. (d) ΔE + RT

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