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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 · 2020 · Mains Paper II

Q13(a). Unequal-concentration second-order kinetics

Question

For A+B→ P, first order in each reactant, derive the integrated expression for k when initial concentrations are a and b.

Answer in brief

k=1/((a-b)t)ln (b(a-x))/(a(b-x)) for a≠ b, where x is product formed per unit volume.

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CoversUnequal-concentration second-order kineticsChemical kinetics

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