1. Tardigrade
  2. Question
  3. Chemistry
  4. A variable opposite external potential ( E text ext ) is applied to the cell Zn | Zn 2+(1 M ) | Cu 2+(1 M )| Cu, of potential 1.1 V. When E ext <1.1 V and potential 1.2 V respectively electron flow from:

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Q. A variable opposite external potential $\left( E _{\text {ext }}\right)$ is applied to the cell $Zn \left| Zn ^{2+}(1 M ) \| Cu ^{2+}(1 M )\right| Cu$, of potential $1.1\, V$. When $E _{ ext }<1.1\, V$ and potential $1.2\, V$ respectively electron flow from:

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Solution:

When $E _{\text {ext }}<1.1 V$, the electrons will flow from anode to cathode, the cell will act as the galvanic cell.
when $E _{\text {ext }}>1.1 V$, electrons will flow from cathode to anode and the cell will act as electrolytic cell.