Absolute zero is the temperature at which sub-atomic particles cease to move.
In Celsius, that temperature is -273 degrees, or 0 Kelvin, which is the absolute scale in the SI system.
In Fahrenheit, it is -460 degrees, or 0 Rankine, the absolute scale in the English system.
The absolute scales are used when doing computations that include temperature, because it "provides a continuous definition of temperature, valid over all ranges of temperature. The normal temperature scales are based on the temperature at which water freezes, and the interval of measurement is determined by the distance to the temperature at which water boils.
Therefore, since there is no temperature below absolute zero (since temperature is fundamentally the measurement of the movement of particles), it can be used as a standardized starting point for a scale of measurement.
2006-06-10 14:21:21
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answer #1
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answered by Sol 4
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Absolute zero is a temperature about 273 degrees centigrade below the freezing point of water. It's a theoretical temperature that can only be closely approached but not reached because it's the temperature at which all motion stops. So electrons going round an atom would stop (but they don't which is why you can't get there.)
In deep space, the temperature is very close to -273C (because there is no matter). It's also called zero Kelvin. Kelvin is a temperature scale that starts at absolute zero and goes up in degrees the same size as Centigrade degrees.
hope that helps!
2006-06-10 14:04:50
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answer #2
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answered by Anonymous
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absolute zero is the temperature at which all molecules of an ideal gas cease motion-yes, ideal gases have turned solid well before cooling to absolute zero, though.
it is denoted by 0degrees on the Kelvin temp scale and -273 degrees on the Celsius temp scale.
Absolute zero has never been achieved in lab experiments, but temperature within a few billionths of a degree have been attained.
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It is when you have done not one bit of work in a class for the entire duration and what the professor gives you for a grade at the end.
2006-06-10 14:03:23
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answer #3
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answered by quntmphys238 6
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Absolute zero is zero Kevin. According to chemists and physicists at this theoretical temperature the atoms of a substance are assumed to come to rest. The closest scientists have to come to this theoretical temperature is -273 degrees Celsius.
2006-06-10 14:10:19
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answer #4
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answered by Anonymous
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absolute zero is actually a temperature. absolute zero is the lowest temperature known to man (i think). when some thing reaches absolute zero, the atoms inside of it stop moving completely. Very very cold.
2006-06-10 14:00:23
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answer #5
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answered by mattiebouge 3
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absolute zero usually refers to zero on the Calvin temperature scale which is the only ratio scale for measuring temperature. Unlike Farenheight and Celsius which are ordinal scales the Calvin scale is a ratio scale and therefore the scale of temperature used in science.
2006-06-11 01:26:50
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answer #6
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answered by StatIdiot 5
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That is the temperature at which molecules can no longer move.
I think it is -386 Farenheight...dont quote me.
2006-06-10 14:01:53
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answer #7
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answered by slipstream1 3
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something to do w/ absolute zero?
2006-06-10 14:00:28
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answer #8
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answered by bettyboop 3
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your mom
2006-06-10 15:39:28
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answer #9
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answered by beamercooldog 1
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