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Uploaded byJerónimo García De Inza
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Absolute zero

Absolute zero is the lowest theoretically possible temperature, at which point molecular motion would cease. It is defined as 0 Kelvin and is used as the baseline for temperature scales. The closest experiments have come to achieving absolute zero is 450 picoKelvins in a Bose-Einstein condensate. Absolute zero was an idea developed by British physicist Lord Kelvin, who proposed that at this temperature no heat energy would remain in a substance.

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Absolute Zero BY: RICARDO SANTANA AND JERÓNIMO GARCÍA
What is it?  It is the lowest theorical temperature  At this level of energy is the lowest one possible.  The greater certainty is sought in determining the position of a particle the less you know its mass and velocity
 Absolute zero is used at starting point in Kelvin and Rankine scale  3th Thermodynamical Law  The most advanced cold room only reaches -273,144ºC  Until now, the closest temperature to absolute zero reached has been obtained in a lab for MIT scientists in 2003.
William Thomson, Lord Kelvin  British physicist and mathematician  No upper limit of how hot things can get  Developed the idea of Absolute Zero  At this temperature, no heat energy remains in a substance
Kelvin Scale  The Kelvin scale is named after Lord Kelvin and his scale starts at 0 degrees Kelvin, which is called absolute zero.  The Kelvin Scale measures the coldest temperature there can be.  K = 273 + 0C  Kelvin is the SI unit of temperature
The Lowest Temperature  Average temperature in the universe today is 2.75K  November 2000, temperatures below 1K  February 2003, Boomerang Nebula  January 2013, physicist achieves negative temperatures  2014, 0,006K
Charles’ Law  Volume of a gas is directly proportional to its temperature.  Volume of a gas gets smaller as it cools.  We can apply this to find the lowest possible temperature of a gas.
Bose-Einstein Condensation  State of matter of a dilute gas.  Satyendra Nath Bose and Albert Einstein in 1924.  Record temperature in a Bose-Einstein condensate of sodium atoms is 450 pK