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 · 2025 · Paper II, Chemistry · Q54 of 120

Geo-Scientist Prelims 2025 Chemistry Q54: For a given process of an ideal gas, dw = 0 and dq < 0. Then, for…

QuestionThermodynamics / first law

For a given process of an ideal gas, dw = 0 and dq < 0. Then, for this gas :

  1. (a) The temperature will decrease
  2. (b) The volume will increase
  3. (c) The pressure will remain constant
  4. (d) The temperature will increase

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

Topic notes: the first law of thermodynamics, adiabatic changes, the Joule–Thomson effect and thermochemistry, with every Civil Services, IFoS and Geo-Scientist PYQ →

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