Page 47 - 11-chem-3

3.GASES eLearn.Punjab

One arth it only occurs in a few limited places, like lightning bolts, flames, auroras, and fluorescent
lights. When an electric current is passed through neon gas, it produces both plasma and light.

Applications of Plasma:

Plasma has numerous important technological applications. It is present in many devices. It helps

us to understand much of the universe around us. Because plasmas’ are conductive respond

to electric and magnetic fields and can be efficient sources of radiation, so they can be used in

innumerable applications where such control is needed or when special sources of energy or

radiation are required.

1. A fluorescent light bulb is not like regular light bulbs. Inside the long tube is a gas. When the light

is turned on, electricity flows through the tube. This electricity acts as that special energy and

charges up the gas. This charging and exciting of the atoms creates a glowing plasma inside the

bulb.

2. Neon signs are glass tubes filled with gas. When they are

turned on then the electricity flows through the tube. The

electricity charges the gas, possibly neon, and creates a

plasma inside the tube. The plasma glows with a special

colour depending on what kind of gas is inside.

3. They find applications such as plasma processing of

semiconductors, sterilization of some medical prodjucts,

lamps, lasers, diamond coated films, high power microwave

sources and pulsed power switches.

4. They also provide the foundation for important potential

applications such as the generation of electrical energy

from fusion pollution control and removal of hazardous

chemicals. Animation 3.7.:Application of Plasma

5. Plasma light up our offices and homes, make our computers Source & Credit: pag

and electronic equipment work.

6. They drive lasers and particle accelerators, help to clean up the environment, pasteurize foods

and make tools corrosion-resistant.

47