Question

What does it mean if Ecell is positive?

Answer 1

The overall cell potential can be calculated by using the equation E0cell=E0red\u2212E0oxid. Step 2: Solve. Before adding the two reactions together, the number of electrons lost in the oxidation must equal the number of electrons gained in the reduction. The silver half-cell reaction must be multiplied by two.Mar 4, 2021

23.6: Calculating Standard Cell Potentials - Chemistry LibreTexts

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Introduction. The cell potential, Ecell, is the measure of the potential difference between two half cells in an electrochemical cell. The potential difference is caused by the ability of electrons to flow from one half cell to the other.Aug 15, 2020

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If E^o_{(redox reaction)} is positive, the reaction will proceed in the forward direction (spontaneous). (see galvanic cells (voltaic cells)). If E^o_{(redox reaction)} is negative (E^o_{(redox reaction)} < 0), the reaction will not proceed in the forward direction (non-spontaneous).