A variable, the opposite external potential ( E ext ) is applied to the cell Z n | Z n 2 + 1 M ∥ C u 2 + 1 M | C u , of potential 1 . 1 V . When E e x t 1.1 V and E e x t 1.1 V , respectively electrons flow from

Question

A variable, the opposite external potential ( E ext ) is applied to the cell Z n | Z n 2 + 1 M ∥ C u 2 + 1 M | C u , of potential 1 . 1 V . When E e x t 1.1 V and E e x t > 1.1 V , respectively electrons flow from, anode to cathode in both the cases., anode to cathode and cathode to anode., cathode to anode and anode to cathode., cathode to anode in both cases.

MARKS App · Accepted Answer

For a Daniel cell, E c e l l = 0.34 - ( - 0.76 ) = 1.10 V . When E e x t 1.10 V , electrons flow from anode to cathode in the external circuit. When E e x t > 1.10 V , electrons flow from cathode to anode in the external circuit (reverse reaction).

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