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Geuis
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I hear in all sorts of experiments that scientists cool materials down to within billionths of a degree of absolute zero. What prevents us, or is there a reason scientists dont, from reaching all the way to absolute zero?
Originally posted by Geuis
. What prevents us, ... from reaching all the way to absolute zero?
Originally posted by Decker
So, which theory is generally more used to prove this: The one Artman/Chi brought up, or the one Creator brought up?
Absolute zero is the lowest possible temperature that can be reached, at which point all molecular motion ceases. It is equivalent to -273.15 degrees Celsius or 0 Kelvin.
According to the third law of thermodynamics, it is impossible to reach absolute zero because it would require an infinite amount of energy to remove all molecular motion from a substance. Additionally, even in a perfect vacuum, there will always be some residual energy present.
Absolute zero is measured using the Kelvin scale, which is based on the properties of gas. At absolute zero, the volume of a gas would theoretically be zero, and the temperature would be 0 Kelvin. This scale is often used in scientific research and calculations.
Scientists have used various methods to try and reach absolute zero, including using lasers to cool molecules, using magnetic fields to manipulate atomic motion, and using specialized refrigeration techniques. However, no experiment has been able to reach absolute zero, and the current record for the coldest temperature achieved in a lab is just a few billionths of a degree above absolute zero.
Reaching absolute zero is not just a scientific curiosity, but it also has potential practical applications. For example, materials that are cooled to near absolute zero can exhibit unique properties, such as superconductivity, which could have implications in fields such as energy storage and transportation. Understanding absolute zero can also help us better understand the behavior of matter at extreme temperatures.