Construction & chemical action of cell, Physics

Construction & chemical action of Cell:

In cells, an electrolyte separates two charge collecting materials called electrodes, to which external connections are made. The electrolyte pushes electrons onto one of the plates and takes them off the other. This action results in an excess of electrons, or a negative charge, on one plate and a loss of electrons, or a positive charge, on the other plate.
Electrolytes are chemical solutions manufactured to allow the generation and free movement of both types of ions, and are normally acid or alkaline pastes or liquids.

The action of the electrolyte in carrying electrons from one plate to the other is actually a chemical reaction between the electrolyte and the two plates. This action changes chemical energy into electrical charges on the cell plates and terminals.

1089_construction of cell.png

With nothing connected to the cell terminals, the electrons would be pushed onto the negative plate until there was no more room. At the same time the electrolyte would take electrons from the positive plate to make up for those it had pushed onto the negative plate. Both plates would then be fully charged and the movement of electrons would cease.
If a wire were connected between the negative and positive terminals of the cell, electrons on the negative terminal would leave the terminal and travel through the wire to the positive terminal. The electrolyte would carry more electrons across from the positive plate to the negative plate. Whilst the electrolyte is carrying electrons you would see the negative plate being used up and you would see bubbles of gas at the positive plate.

 

 

Posted Date: 9/13/2012 1:52:38 AM | Location : United States







Related Discussions:- Construction & chemical action of cell, Assignment Help, Ask Question on Construction & chemical action of cell, Get Answer, Expert's Help, Construction & chemical action of cell Discussions

Write discussion on Construction & chemical action of cell
Your posts are moderated
Related Questions
Explain about the amplitude mode of data presentation. The A-mode: The A-mode or the Amplitude mode of data presentation exhibits the amount of obtained ultrasonic energy li

A popular toy on the market some years ago was the water rocket. Water (at 10°C) was loaded into a plastic rocket and pressurized with a hand pump. The rocket was released and woul

A train consists of a 4300-kg locomotive pulling two loaded boxcars. The first boxcar has a mass of 12,700 kg and the second has a mass of 16,300 kg. Presume that the boxcar wheels

The idea that everything is made up of very small particles has been developed over many years supported by several experiments: (i)                Brownian motion :

laws of successive disintegration

Question: Portray is a principal ray for the case of a concave lens. Where does it depart from here? Ans: In the situation of a diverging lens there is a ray that

The frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this wave? Ans: The velocity of given wave is 1250 meters/second.

The digital circuit that can be examined with the help of Boolean algebra is known as logic circuit or logic gate. A logic circuit has two or more inputs but only one output. Th

How much does automotive oil weigh? As rough guide engine oil generally weighs about 0.87 kg/litre or about 7.2 pounds per US gallon unfortunately a rough answer is the best th

ZENER DIODE: It is a two terminal semiconductor junction device with a very sharp voltage breakdown at reverse bias applied. The device is utilized to give a voltage reference.