Search results
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 the point where no more heat can be removed. Learn how absolute zero is measured in Kelvin, Celsius, and Fahrenheit, and what happens to matter at very low temperatures.
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
Nov 15, 2018 · Absolute zero isn't just a fancy-sounding number: it's the lowest temperature possible, where the atoms and moleules in a substance become absolutely still.
Mar 15, 2017 · The third law of thermodynamics states that absolute zero is unreachable because it requires infinite time and resources. A new study uses quantum information theory to show that cooling to absolute zero is impossible, even in principle.
Nov 27, 2019 · 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.
Feb 17, 2010 · Absolute zero. Chill things close to the lowest possible temperature and weird things start to happen. New Scientist takes a look at the coldest objects in the universe.
