Concept information
Preferred term
absolute zero
Definition
- Absolute zero is the lowest limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvin. The fundamental particles of nature have minimum vibrational motion, retaining only quantum mechanical, zero-point energy-induced particle motion. The theoretical temperature is determined by extrapolating the ideal gas law; by international agreement, absolute zero is taken as −273.15 degrees on the Celsius scale (International System of Units), which equals −459.67 degrees on the Fahrenheit scale (United States customary units or Imperial units). The corresponding Kelvin and Rankine temperature scales set their zero points at absolute zero by definition. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Absolute_zero)
Broader concept
Entry terms
- zero K temperature
In other languages
-
French
-
température de zéro K
URI
http://data.loterre.fr/ark:/67375/MDL-PF4634BJ-N
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