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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

Q9(a). Transport number of H⁺ falls with temperature

Question

With increase of temperature of HCl(aq) solution, the transport number of the H⁺ ion decreases, though its velocity increases. Explain with reason(s).

Model answer

The free solution for 2018 answers questions 1, 2, 3, 4, 5, 6, 8, 12, 13 and 15, the ones picked in its time plan. This part is not answered on the site yet. New answers are announced on Telegram.

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Coverstransport numberGrotthuss mechanismH+ ion mobilitytemperature effect

All parts of Question 9