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noun
The lowest temperature that is theoretically possible, at which the motion of particles which constitutes heat would be minimal. It is zero on the Kelvin scale, equivalent to −273.15°C.
- ‘At absolute zero the internal energy of the system would be zero since temperature is proportional to internal energy.’
- ‘Only in the study of quantum liquids at temperatures close to absolute zero does experimental accuracy approach Heisenberg's limit.’
- ‘In doing so, he devised a more fundamental way of defining the absolute zero of temperature, independent of any particular material substance.’
- ‘It is the Kelvin temperature scale that defines its zero point as absolute zero, and is calculated by adding 273 degrees to the Centigrade temperature.’
- ‘All objects with a temperature greater than absolute zero emit infrared energy, the most common characteristic of which is heat.’
- ‘In the billions of years since, they have cooled to less than three degrees Kelvin above absolute zero, equivalent to microwave frequencies.’
- ‘The third law of thermodynamics states that for a perfect crystal at a temperature of absolute zero on the Kelvin scale the entropy value is zero.’
- ‘Any material object at a temperature above absolute zero radiates energy.’
- ‘At absolute zero atoms have the minimum amount of vibration possible.’
- ‘Because temperature is a measure of the motion of molecules there is a theoretical absolute zero temperature at which all molecular motion would cease.’
- ‘A regular incandescent light bulb relies on the fact that all bodies with a temperature greater than absolute zero emit radiation.’
- ‘But in recent years researchers have found a handful of complex metal-free materials that can become magnetic at temperatures near absolute zero.’
- ‘In fact, to quash all doubts, zero on the Kelvin scale is dubbed absolute zero.’
- ‘This indicated as the absolute zero of temperature the point that would be marked as - 273 degrees on an air thermometer scale.’
- ‘What will happen to the gas at absolute zero temperature?’
- ‘He was not serious: in fact, he had done fundamental research on electromagnetism and light, on telegraphy, and on heat, where he had come up with the idea of an absolute zero of temperature - the scale based on this is named after him.’
- ‘The Kelvin temperature scale is based on this fact, with zero Kelvin representing absolute zero.’
- ‘At the point on the graph where the volume of the gas is zero (gas cannot have a volume less than zero), the theoretical temperature is absolute zero, the coldest temperature possible.’
- ‘The zero point on the Kelvin scale is known as absolute zero and it is theoretically the coldest temperature achievable.’
- ‘The behaviour of a gas at temperatures close to absolute zero depends on whether the atoms in the gas are fermions or bosons.’
Pronunciation:
Further reading
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