Garb B. Eidsvold
Henrik Larsen
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Zero kelvin (−273.15 °C) is defined as absolute zero. 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.
Aug 10, 2020 · Absolute zero is the lowest possible temperature for all substances, defined as 0 K, -273.15 °C, or -459.67 °F. Learn how absolute zero works, why we can't reach it, and what are the coldest temperatures ever recorded.
The kelvin, symbol K, is the base unit of measurement for temperature in the International System of Units (SI). The Kelvin scale is an absolute temperature scale that starts from 0 K, the coldest possible temperature (absolute zero), then rises by exactly 1 K for each 1 °C.
Apr 25, 2024 · Kelvin is the base unit of thermodynamic temperature measurement in the International System of Units (SI). It is also the fundamental unit of the Kelvin scale, an absolute temperature scale with zero at absolute zero (−273.15°C).
- The Editors of Encyclopaedia Britannica
Apr 5, 2024 · Absolute zero is the lowest temperature possible, corresponding to −273.15 °C on the Celsius scale and −459.67 °F on the Fahrenheit scale. Learn about the history, properties, and measurement of absolute zero and the Kelvin scale.
- The Editors of Encyclopaedia Britannica
May 8, 2019 · Learn what the Kelvin scale is, how it is defined, and how it differs from other temperature scales. The Kelvin scale has zero at absolute zero and does not use degrees or negative numbers.
Feb 17, 2010 · But scientists found that molecules at frigid temperatures just a few hundred billionths of a degree above absolute zero (−273.15°C or 0 kelvin) can still exchange atoms, forging new...
