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Electrochemistry question

2016 · Q80
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Electrochemistry question

2016 · Q80

NEETChemistryElectrochemistryMCQ+4 / −1
If the Eocell for a given reaction has a negative value, which of the following gives the correct relationships for the values of Δ\DeltaΔGo and Keq ?
  1. A
    Δ\DeltaΔGo > 0;   Keq < 1
  2. B
    Δ\DeltaΔGo > 0;   Keq > 1
  3. C
    Δ\DeltaΔGo < 0;   Keq > 1
  4. D
    Δ\DeltaΔGo < 0;   Keq < 1
View written solutionFree

Correct answer: A

We know that

Δ\Delta ΔGo = –nFEocell

Eocell = -ve then Δ\Delta ΔGo = +ve or Δ\Delta ΔGo > 0

Δ\Delta ΔGo = -nRTlog Keq

For Δ\Delta ΔGo = +ve, Keq = -ve or Keq < 1.

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