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NTA Abhyas NEET2020ChemistryElectrochemistryPractice

Identify the incorrect statement among the following?

Options

  1. AA salt bridge is used to eliminate liquid junction potential in a galvanic cell
  2. BThe Gibbs free energy change, Δ G is related with electromotive force ( E ) , as Δ G = - n F E
  3. CNernst equation for single electrode potential is given by E = E o − RT nF ln M n +
  4. DThe maximum theoretical efficiency of a hydrogen oxygen fuel cell is 33 %

Correct answer

D. The maximum theoretical efficiency of a hydrogen oxygen fuel cell is 33 %

Step-by-step solution

The maximum theoretical efficiency of a hydrogen oxygen fuel cell has been attained is 83% efficiency .

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