Schematicize of batteries Batteries is established with an

Schematicize of batteries Batteries is established with an anode and a cathode. When schematizing, anode is write to the left and cathode is writed to the right related to salt bridge (% 3 agar solution saturated with KCl) and these are bonded with a salt bridge.

Cu 2+ + Zno Cuo + Zn 2+ Anode Cathode (-) Zn │Zn 2+ (C Zn 2+) ‖ Cu 2+ │Cu 2+ (C Cu 2+) (+) Determination of anode and cathode if conditions are not standard If the conditions deviate from the standard, is calculated according to the potential Nernst equation, and if it is more positive then the pole becomes the anode and the other becomes the anode.

It is desired that the system formed by combining a semi-cell consisting of an aluminum electrode immersed in a 0. 01 M Sn 2+ solution with a semi-cell filled with 0. 01 M Cu 2+ solution is a galvanic cell. What is the electromotor force for this?

Accumulator It is used as an energy source. The following reactions occur in the anode and cathode of this battery ANODE CATHODE Pb(s) + HSO 4– Pb. SO 4(s) + 2 e– + H+ Pb. O 2(s) + HSO 4– + 3 H+ + 2 e– Pb. SO 4(s) + 2 H 2 O Pb(s) + 2 HSO 4– + 2 H+ + Pb. O 2(s) 2 Pb. SO 4(s) + 2 H 2 O When there are reactions, an electric current is generated spontaneously and this current is used by the device which completes the circuit.

At the end of the reaction, Pb. SO 4 is deposited on the surface of the battery poles and no residual current flows. In this case, the vessel in which it flows is converted into an electrolysis vessel for dissolution of the accumulated Pb. SO 4 and re-charging of the battery. In other words, external electric current is given to reverse the reactions.

This event; a galvanic cell can be turned into an electrolysis cell by externally flowing current. But in order to be able to do this, it is necessary to apply some more potential to the galvanic cell to produce the galvanic cell. For this purpose, a generator is placed between the wire connecting the electrodes of a galvanic cell (metal rods) and applied to the electrodes by means of the calculated appropriate potential generator.