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UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper II covers physical chemistry.

UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper II

Q2(b). Boyle temperature of helium

Question

Find the Boyle temperature for van der Waals He with a=0.0341 atm dm⁶ mol⁻² and b=2.38×10⁻² dm³ mol⁻¹.

Answer in brief

TB=17.46 K.

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The full model answer

As written for the answer booklet: the diagram carries the working, the lines stay short. Read here only; it is not offered as a download.

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CoversBoyle temperature of heliumReal gases

All parts of Question 2