VKC ScienceChemistry for written exams Telegram

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 · 2022 · Paper II, Chemistry · Q65 of 120

Geo-Scientist Prelims 2022 Chemistry Q65: For a binary (A + B) ideal liquid solution, the total vapour…

QuestionSolutions / Raoult's law

For a binary (A + B) ideal liquid solution, the total vapour pressure of the solution is given as

(where x_A and x_B are the mole fractions of the components A and B)

  1. (a) p_total = p*_A + (p*_A − p*_B) x_A
  2. (b) p_total = p*_B + (p*_A − p*_B) x_A
  3. (c) p_total = p*_A + (p*_B − p*_A) x_A
  4. (d) p_total = p*_B + (p*_B − p*_A) x_B

Part of VKC Basic

Read the answer and its explanation with VKC Basic

VKC Basic (₹999 for 6 months) opens every solved answer, the notes, the handbook and the daily answer archive. Every Mains test series includes it.

See what is included Already a member? Sign in

Take this paper offlineAll 120 questions with answers and explanations in one PDF.
Download PDFJoin Telegram