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Assam CEE Thermodynamics of Cells — practice questions

Explore 1 free Thermodynamics of Cells questions in Assam CEE Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Thermodynamics of Cells questions and exercises with answers

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The Gibbs free-energy change of a galvanic cell reaction is given by:Read the answer and worked solution →

Worked practice questions

The Gibbs free-energy change of a galvanic cell reaction is given by:

  1. $\Delta G = -E/(nF)$
  2. $\Delta G = +nFE$
  3. $\Delta G = -nFE$
  4. $\Delta G = nF/E$
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Correct answer: C. $\Delta G = -nFE$

$\Delta G = -nFE$, where $n$ = number of electrons transferred, $F$ = Faraday constant (96 485 C/mol), $E$ = cell EMF. A positive $E$ ⇒ negative $\Delta G$ ⇒ spontaneous reaction.

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