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Physical States Of Matter

Plasma State

Chemistry

Plasma was first discovered by William Crookes in 1879.

Preparation of Plasma: It was discovered by adding energy to a gas. As a result some electrons left their atoms and formed positive and negative ions by ionization. In plasma these charged particles react strongly to electric and magnetic fields. If plasma loses heat, the ions will re-form into a gas, emitting the energy which had caused them to ionize.

Plasma is superheated matter . So hot that the electrons are ripped away from the atoms forming an ionized gas.

It means that plasma is distinct state of matter containing a significant number of electrically charged particles which affect its electrical properties and behavior. Some examples of daily life are as follow:

  • The lightning makes plasma naturally.

  • The Artificial (man-made) uses of plasma include fluorescent light bulbs, Neon signs.

  • The use of plasma display of television or computer screens.

  • The plasma lamps and globes are popular in children's toys and room decoration.

  • Scientists are experimenting with plasma to make a new kind of nuclear power, called fusion, which will be much better and safer than ordinary nuclear power with less radioactive waste.

  • It comprises over 99% of the visible universe. In the night sky, plasma glows in the form of stars, nebulas, and even the auroras that sometimes ripple above the north and south poles.