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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 · 2019 · Mains Paper II

Q4. Compressibility factor

Question

Define compressibility factor Z. Calculate it for a gas obeying p(V-nb)=nRT when its molar volume is 10b.

Answer in brief

Z=pV/(nRT)=pVₘ/(RT)=10/9≈1.111.

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CoversCompressibility factorReal gases