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UPSC Combined Geo-Scientist

Chemist

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

Mains Paper III covers analytical and organic chemistry.

UPSC Combined Geo-Scientist, Mains · 2020 · Mains Paper III

Q4(a). Specific surface area of divided cubes

Question

Define specific surface area. A 1 cm³ cube of mass 2 g is divided into 1000 equal cubes. Find their specific surface area.

Answer in brief

The new specific surface area is 30 cm²/g, or 0.003 m²/g.

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CoversSpecific surface area of divided cubesSurface properties

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