Mark the false statement.

  • A
    $A$. $A$ salt bridge is used to eliminate liquid junction potential.
  • B
    $B$. The Gibbs free energy change,$\Delta G$ is related to electromotive force $(E)$,as $\Delta G = -nFE$.
  • C
    $C$. The Nernst equation for single electrode potential is $E = E^o - \frac{RT}{nF} \ln a_{M^{n+}}$.
  • D
    $D$. The efficiency of a hydrogen-oxygen fuel cell is $23 \%$.

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Similar Questions

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: In equation $\Delta_r G = -nFE_{\text{cell}}$,the value of $\Delta_r G$ depends on $n$.
Reason $R$: $E_{\text{cell}}$ is an intensive property and $\Delta_r G$ is an extensive property.
In the light of the above statements,choose the correct answer from the options given below:

Explain the redox reaction of electrodes with the example of a Daniell cell.

Select the incorrect statement for a dry cell.

In which cell,construction like a galvanic cell can be observed? Explain.

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What happens to the voltage if the salt bridge is suddenly removed from a working electrochemical cell?

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