Explain how electrical energy produce in a dry cell?

Answer 1

For the cheapest carbon-zinc variety, a zinc outer casing (anode) contains a layer of NH4Cl with ZnCl2 aqueous paste separated by a paper layer from a mixture of powdered carbon & manganese(IV) oxide (MnO2) which is packed around a carbon rod (cathode). As the cell runs, manganese is reduced from an oxidation state of +4 to +3, collecting electrons from the carbon rod, while the zinc metal anode is oxidized to Zn2+ ions, producing the electrons. So the electrons travel outside the cell, from the zinc casing (the negative end or anode) through contacts and wires to the carbon rod (which is in contact with the manganese dioxide powder, the actual cathode material, and so is positive). In so-called alkaline cells (see alkaline battery), some of the electrolyte in the paste is replaced with an alkaline paste of potassium hydroxide. However, the essential transfer of electrons from zinc to manganese still powers the cell. The standard carbon-zinc dry cell is relatively cheap, and until recently, has been the most common type of cell (only recently being replaced in most uses by the alkaline type). It was the first commercial portable battery (technically, a battery is made of two or more cells) and therefore the dry cell had a large impact on society, as it contributed to the development of flashlights (torches) and portable radio

Answer 2

A dry cell battery converts chemical energy into electricity. The chemical reaction produces electrons, which then collect at the negative terminal of the battery. When there is a connection between the positive and negative terminal, the electrons flow to the positive terminal. This electron flow is what we experience as an electric current.

Answer 3

You will be able to do this with the right materials. EHow is a great place to visit to learn how to do this.

Answer 4

A dry cell isn't produced- its just a dead cell. For example, when you scratch an itch, you are scratching off dry, dead, tight skin cells.

Answer 5

FROM FRICTION

Answer 6

with two things: water and copper wires

Answer 7

p