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- The concept of absolute zero was suggested by the behavior of gases at low pressures, which seem to contract indefinitely as temperature decreases1. Experiments were performed measuring the compressibility and coefficients of expansion of various gases by Regnault, and Joule and Kelvin used a thermodynamic equation of state similar to Rankine and collapsed Regnault's data, which lead to an 'absolute zero' point at -273.72 degrees below the freezing point of water2. In 1848, Lord Kelvin extended Amontons’ work, developing what he called an “absolute” temperature scale that would apply to all substances. He set absolute zero as 0 on his scale, getting rid of the unwieldy negative numbers3.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The notion that there is an ultimately lowest temperature was suggested by the behaviour of gases at low pressures: it was noted that gases seem to contract indefinitely as temperature decreases. It appeared that an “ ideal gas ” at constant pressure would reach zero volume at what is now called the absolute zero of temperature.www.britannica.com/science/absolute-zeroIn any event, experiments were performed measuring the compressibility and coefficients of expansion of various gases by Regnault, and Joule and Kelvin used a thermodynamic equation of state similar to Rankine and collapsed Regnault's data (and added some of their own), which lead to an 'absolute zero' point at -273.72 degress below the freezing point of water.www.physicsforums.com/threads/how-was-absolut…In 1848, the Scottish-Irish physicist William Thomson, better known as Lord Kelvin, extended Amontons’ work, developing what he called an “absolute” temperature scale that would apply to all substances. He set absolute zero as 0 on his scale, getting rid of the unwieldy negative numbers.wisdomanswer.com/how-was-absolute-zero-first-d…
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Absolute zero - Wikipedia
At very low temperatures in the vicinity of absolute zero, matter exhibits many unusual properties, including superconductivity, superfluidity, and Bose–Einstein condensation. To study such phenomena, scientists have worked to obtain even lower temperatures. See more
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. The fundamental particles of nature have minimum … See more
A Bose–Einstein condensate (BEC) is a state of matter of a dilute gas of weakly interacting bosons confined in an external potential and cooled to temperatures very near absolute zero. Under such conditions, a large fraction of the bosons occupy the lowest See more
Temperatures that are expressed as negative numbers on the familiar Celsius or Fahrenheit scales are simply colder than the zero points … See more
The average temperature of the universe today is approximately 2.73 K (−270.42 °C; −454.76 °F), based on measurements of See more
At temperatures near 0 K (−273.15 °C; −459.67 °F), nearly all molecular motion ceases and ΔS = 0 for any adiabatic process, … See more
Absolute, or thermodynamic, temperature is conventionally measured in kelvin (Celsius-scaled increments) and in the Rankine scale See more
One of the first to discuss the possibility of an absolute minimal temperature was Robert Boyle. His 1665 New Experiments and Observations touching Cold, articulated the … See more
Wikipedia text under CC-BY-SA license Absolute zero | Definition & Facts | Britannica
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What is absolute zero and how is it determined?
Jul 12, 2024 · 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 …
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Jun 26, 2024 · In 1848, Lord Kelvin used similar reasoning to accurately calculate the absolute coldest temperature as negative 273.15 Celsius (or negative 459.67 degrees Fahrenheit). It would be roughly another decade before scientists like …
Absolute Zero | Smithsonian
Jan 1, 2008 · On Fahrenheit's scale, zero degrees was the temperature of a mixture of equal parts ice, water, and salt, and 212 degrees was the temperature at which water boiled. Though Fahrenheit's temperature scale became widely …
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