2006-07-25 02:20:56 · 22 answers · asked by sagresM 1 in Science & Mathematics ➔ Astronomy & Space
no, its 273.15
2006-07-25 02:24:06 · answer #1 · answered by Auggie 3 · 0⤊ 0⤋
By international agreement, absolute zero is a temperature of precisely â273.15 °C (â459.67 °F). It should be the same everywhere in the Universe, but who knows? We haven't been everywhere yet.
I may be mistaken, but I think that Heinsberg's Uncertainty Principle prevents us from ever reaching absolute zero.
Heinsburg said that it is impossible to know a particle's exact position and exact momentum at the same time. At absolute zero, the speed of the atoms are known (zero) and the positions could theoretically be known also; therefore, achieving absolute zero might be impossible.
..................................................................
From Wikipedia, the free encyclopedia:
Because of quantum-mechanical effects, the speed at absolute zero is larger than zero and depends, along with the energy, on the volume within which a particle is confined. At absolute zero, the molecules and atoms in a system are all in their ground state, the state of lowest possible energy, and a system has the least amount of kinetic energy allowed by the laws of physics. But the lowest possible zero-point energy for a confined particle in a box is not zero. Rather than being fixed and non-moving, the equation for the energy levels shows that no matter how low the temperature gets, even when the quantum number takes its minimum value of one, a particle still has some translational kinetic energy and motion. This is a reflection of Heisenberg's uncertainty principle, which states that the position and the momentum of a particle cannot both be known precisely at any given time.
2006-07-25 09:37:56 · answer #2 · answered by Randy G 7 · 0⤊ 0⤋
I'm working off of my memory here but isn't it -273.15C? Absolute zero is attainable when there is no atomic vibration whatsoever. Around this temperature a fifth state of matter, Bose Einstein exists. Absolute zero is theoretically possible and scientists have got very close to it in their labs but absolute zero would be absolute zero anywhere in any universe by my estimation although a proper particle physicist may have a better argument over possible fluctuations in this as I failed my physics O-level!
2006-07-25 09:40:28 · answer #3 · answered by Uncle Sid 3 · 0⤊ 0⤋
If it is the absolute minimum temperature then it can never be reached. That's because to cool something down you need to remove energy from it, but you can only remove the heat energy by transfering it to something that has less heat energy (i.e. is colder.) This means that whatever you transfer the energy to must already be at below absolute zero, which is not possible as we've already said that it's the absolute minimum temperature.
2006-07-28 19:29:08 · answer #4 · answered by Timbo 3 · 0⤊ 0⤋
Yes (well 273.15 to five significant figures) except in England where the forecast at absolute zero is for outbreaks of rain.
Anything is possible, even getting a good answer on Yahoo Answers.
2006-07-25 09:25:01 · answer #5 · answered by Fatboy_Howie 1 · 0⤊ 0⤋
Absolute zero is the same for all universe. And it is the minimum temperature as possible
2006-07-29 08:00:55 · answer #6 · answered by natasha_thorn 1 · 0⤊ 0⤋
Other Universes May Or May Not Have The Same set Of Laws As Our universe. Good Ques Tho.
2006-07-25 09:35:02 · answer #7 · answered by savvy s 2 · 0⤊ 0⤋
nobody has reached the temperature of absolute zero yet, it appears to be the coldest temp possible and the theory hasnt cracked yet, we only know of our universe,we don.t have space travel to other universes, just fat spastic armstrong supposedly playing golf on the moon. We can't measure temps that accurately at those distances for cold matter yet, so there you have it.
blah blah
2006-07-28 07:07:46 · answer #8 · answered by Dirk Wellington-Catt 3 · 0⤊ 0⤋
yes, well 273.15, and is a artefact of the gas laws, so it will be the same everywhere.
Howvere it is impossible to reach that temperature as it would violate the third law of thermodynamics. Which basically states that as you cool things down, the entropy(the measure of chaos) in a system decreases. Entropy doesn't like doing that, have you ever tried un-baking a cake, so you are left with the ingredients?
2006-07-25 10:30:09 · answer #9 · answered by northern_seth 2 · 0⤊ 0⤋
Liquid helium comes close to it at only 4 deg C above absolute zero. This is used in MRI superconducting magnets
2006-07-25 14:04:04 · answer #10 · answered by bwadsp 5 · 0⤊ 0⤋
It is the absolute minimum possible, because there is no energy left in the thing you are making so cold.
2006-07-25 13:36:00 · answer #11 · answered by autisticspectrumkid 2 · 0⤊ 0⤋