Electricity for public schools and colleges . FiG. ii. ation of PbSO, from this (PbO + H,SO,= PbSO,+H.,0) can be re-garded as a secondary action, and has no direct bearing on theelectrolytical theory of the cell. If we connect the terminals of the cell, a current is set up in areverse direction to the current that was last passed through thecell in its formation. One atom of oxygen from each molecule ofPbO.) passes back to the other plate, giving PbO on each plate,instead of Pb02 on the one and Pb on the other. This actionfrom the one plate across the liquid to the other plate takes placeonly
Electricity for public schools and colleges . FiG. ii. ation of PbSO, from this (PbO + H,SO,= PbSO,+H.,0) can be re-garded as a secondary action, and has no direct bearing on theelectrolytical theory of the cell. If we connect the terminals of the cell, a current is set up in areverse direction to the current that was last passed through thecell in its formation. One atom of oxygen from each molecule ofPbO.) passes back to the other plate, giving PbO on each plate,instead of Pb02 on the one and Pb on the other. This actionfrom the one plate across the liquid to the other plate takes placeonly step by step with the current ; and the current will continueas long as there is PbOg left. When the cell has run down,each plate will be coated with PbO (or, by action with the diluteacid, with , which is equivalent to PbO as regards degreeof oxidisation). III. For the cell to be recharged, a current must be againpassed through the cell. If we consider that there is PbO on bothsides, the action is simple ; by an electrolytic passage o
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Keywords: ., bookcentury1800, bookdecade1890, bookpubl, booksubjectelectricity
