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- 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).
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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.
Aug 10, 2020 · Absolute zero is the lowest possible temperature for all substances, defined as the point where no more heat can be removed. Learn how absolute zero is measured in Kelvin, Celsius, and Fahrenheit, and why it is impossible to reach or measure it exactly.
May 31, 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 how absolute zero was discovered, how it affects gases and matter, and how it relates to the Kelvin scale and other thermodynamic concepts.
- The Editors of Encyclopaedia Britannica
Absolute zero is the lowest possible temperature on the thermodynamic scale, where heat cannot be removed from a system. Learn how scientists have approached absolute zero, and what negative temperature means in quantum mechanics and magnetism.
May 4, 2021 · Absolute temperature is a temperature measurement on an absolute scale, where zero is absolute zero. Learn about the two absolute temperature scales (Kelvin and Rankine), their conversions, and their applications in chemistry and physics.
Sep 11, 2014 · Absolute zero is at -273.15 Celsius, or -459.67 Fahrenheit. The Kelvin temperature scale uses the same size degree as Celsius, but has its zero set to absolute zero. To convert from Celsius to Kelvin, add 273.15 to the Celsius reading.
Jan 19, 2004 · Learn how laser cooling and evaporative cooling can lower the temperature of atomic gases to below one nanokelvin, close to absolute zero. Find out how the size and shape of the atomic cloud reveal the energy content of matter.
