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Physical States Of Matter

Bose Einstein Condensate BEC

Chemistry

Introduction:

Two scientists Satyendra Bose and Albert Einstein discovered another state of matter in 1920 but they did not have the equipment and facilities to make it happens at that time. Afterward in 1995 two other scientists Eric Cornell and Carl Weiman also proposed another state of matter known as Bose-Einstein Condensate (BEC).

Opposite to Plasma: They discovered that as plasma are super-hot and super excited atoms. The atoms in a Bose-Einstein condensate (BEC) are totally opposite. They are super unexcited and super cold atoms.

Explanation of Condensation: Condensation happens when several gas molecules come close together and form a liquid. It all happens because of a loss of energy. Gases are really excited or energetic atoms. When they lose energy, they slow down and begin to gather. They can gather into one drop.

Existence of BEC at Absolute Zero:

Absolute Zero:

“Absolute Zero is a temperature where all the atomic activities stop theoretically, whose value is zero Kelvin 0 K (Kelvin) or -2730^0 C.” The BEC happens at super low temperatures. When we get a temperature near absolute zero, all molecular motion stops due to depletion of energy and atoms begin to clump. The result of this clumping is the BEC. In common we can not see this state in observable nature, because it is very difficult to reach at very low temperature under normal lab conditions.