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absolute temperature

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absolute temperature
temperature as measured using a scale in which the hypothetical lowest possible temperature is marked as zero (Thermodynamics)

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Absolute zero
Absolute zero is the lowest temperature possible. More formally, it is the temperature at which entropy reaches its minimum value. The laws of thermodynamics state that absolute zero cannot be reached using only thermodynamic means. A system at absolute zero still possesses quantum mechanical zero-point energy, the energy of its ground state. The kinetic energy of the ground state cannot be removed. However, in the classical interpretation, it is zero and the thermal energy of matter vanishes. The zero point of any thermodynamic temperature scale, such as Kelvin or Rankine scale, is set at absolute zero. By international agreement, absolute zero is defined as on the Kelvin scale and as -273.15° on the Celsius scale. This equates to -459.67° on the Fahrenheit scale and 0 R on the Rankine scale. Scientists have achieved temperatures extremely close to absolute zero, where matter exhibits quantum effects such as superconductivity and superfluidity.

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Thermodynamic temperature
Thermodynamic temperature is the absolute measure of temperature and it is one of the principal parameters of thermodynamics.

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WordNet 2.0 Dictionary

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absolute temperature

Noun
1. temperature measured on the absolute scale
(hypernym) temperature


Telecommunication Standard Terms Dictionary

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absolute temperature

General Chemistry Glossary

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absolute temperature
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Temperature measured on a scale that sets absolute zero as zero. In the SI system, the kelvin scale is used to measure absolute temperature.


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