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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.
Updated on November 27, 2019. Absolute zero is defined as the point where no more heat can be removed from a system, according to the absolute or thermodynamic temperature scale. This corresponds to zero Kelvin, or minus 273.15 C. This is zero on the Rankine scale and minus 459.67 F.
Oct 14, 2016 · Absolute zero is unattainable. You could do it in theory according to classical laws of physics, but it's quantum mechanics (including quantum electrodynamics) which prevents absolute zero to be reached.
- There was a story in my days about a physical chemist who was asked to explain some effect, illustrated by a poster on the wall. He did that, after...
- Absolute zero is a tricky concept, particularly once you start getting precise about it. Thermodynamics and quantum mechanics is a tricky business...
- Leaving quantum mechanics aside (it gives me a headache) the second law of thermodynamics prevents absolute zero from being reached in practice. T...
- The usual answer is that it actually is possible because even though the ground state of spacetime itself has non-zero energy, it is not kinetic en...
- Absolute zero can definitely exists (see the later edit), and there is at least one theory, that says that absolute zero will kind of be the norm i...
- Absolute zero is unattainable. You could do it in theory according to classical laws of physics, but it's quantum mechanics (including quantum el...
- Two days ago a publication (Ref. 1) appeared proving mathematically that it is impossible to reach Absolute Zero. This is kinda hard to read but we...
- Feynman is correct. Stop and think a moment. What does it mean to be "at absolute zero" if we accept the proposition that absolute zero is unobtain...
Apr 12, 2018 · Thermodynamic temperature is an “absolute” scale because it is the measure of the fundamental property underlying temperature: its null or zero point (“absolute zero”) is the temperature at which the particle constituents of matter have minimal motion and cannot become any colder.
Oct 5, 2022 · Absolute zero is defined as the point where no more heat can be removed from a system, according to the absolute or thermodynamic temperature scale. This corresponds to zero Kelvin, or minus 273.15 C. This is zero on the Rankine scale and minus 459.67 F.
Jan 4, 2013 · This does not mean, however, that the law of energy conservation is violated. Instead, the engine could not only absorb energy from the hotter medium, and thus do work, but, in contrast to the ...
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Nov 15, 2019 · Nothing in the universe — or in a lab — has ever reached absolute zero as far as we know. Even space has a background temperature of 2.7 kelvins. But we do now have a precise number for it: -459.67 Fahrenheit, or -273.15 degrees Celsius, both of which equal 0 kelvin.
