[Neraphym]

Alright, I herd this thing by some guy named Charles that all gases expand and contact at the same rate when heated or cooled, and that rate is 1/273 of the volume at 0ºC for every increase of 1ºC. This leads to Charles' Law: V1 / T1 = V2 / T2. I got that much, but lost it at this. Say we were to arbitrarily use a gas that is at 273 mL at 0ºC. If the temperature were increased to 10º, the resulting volume would be 283 mL. The same is true if we cooled it to -10º. Its volume would then go down to 263 mL. Ok, what happens when we cool it down to -273ºC (0º Kelvin or absolute zero)??? The volume of the gas would be, well, zero, and that cannot be... I think. What matter can have an absence of kinetic energy? Can someone explain to me what happens to matter at absolute zero?

[Crescens]

Aye! At absolute zero the particles of matter stop all movement, thus leaving no kinetic energy left.

[Neraphym]

But do they all squeeze into nothingness having a volume of zero?

[Crescens]

The ideal gas laws don't apply to all circumstances; you should learn shortly after that ideal gas laws are completely pointless, and then you'll be given another formula for other stuff. Isn't Chem great?

* laughs at Killer for taking AP Chem *

[Gracious gal]

Firstly, no one is able to reach the temperature of absolute temperature which is 0K. Secondly, an ideal gas deviates from a real gas when the gas is at low temperature as the molecules will be close together and mutual attractions between the molecules will be significient. However, one of the assumptions of an ideal gas is that the attractions between the molecules of a gas is insignificient. Thus, when u use the formula, the answer actually is different from what u find.

[Jarik C-Bol]

woo. i'm glad i didn't take chem. i do know that they have managed to get withing a few tenths of a degree of absolute zero, using radio interferance to stop as much kinetic motion as posible in a gas. (Basicly, they made a "ball" of radio inerferance, they couldn't make absolute zero because they had to lave a small hole in the ball) either way, the ideal gas law is "ideal" thats how it works idealy, bu in reality it varys and stuff. (i hate chem... i can never explain this stuff for beans on tests)

[Eliteman03]

Yea the reason that absolute zero is impossible to reach is that whatever you are trying to supercool is always touching something else not at absolute zero. Think of it this way, you are trying to cool a gas, so you put it in a tube. The tube is not at absolute zero, so it transfers some of it's energy to to gas making it impossible to bring the gas to absolute zero.

With the previous post, yes they did get very close to absolute zero, but couldn't get to it because they had to leave a hole. The hole was there so that they could tell what the temp was inside. This goes back to the Schrodinger's Cat Paradox, and if anyone wants more info on that, post back.

[ratzaroony]

scientists have made small amounts of matter (atoms) reach temperatures just above absolute zero.

This post has been edited by ratzaroony: 11 June 2004 - 12:09 AM

[Ferret Overlord]

Absolute zero causes all particles to stop moving. Thus, moving something that is in absolute zero temperature would cause it to explode (shatter). Scientists have created a freezer that can freeze up to .3 degrees of absolute zero, but never total absolute zero.

Gaah... my head hurts.

This post has been edited by Ferret Overlord: 11 June 2004 - 12:13 AM

[Cspace]

Until scientists find a way to cancel out the background radiation of our universe we won't be able to see absolute zero. An object could be floating many lightyears from any star in the vastness of space and still be above absolute zero beause space itself as we know it technically has a temperature (basically).

If particles behave as we believe, I think that an object cooled to absolute zero would fall apart atom-by-atom because the particles wouldn't have the energy to hold on. I'm not really a chem person but I think this is what is commonly believed.

Going into astrophysics, however... (not explaining some "fundamental" concepts, I won't be hurt if you stop reading here )

It is now starting to be believed that electrons are actually not particles - at least not as currently explained. Regardless by which method, they can never be physically located and from our perspective they appear and disappear randomly. As I said, sorry, I don't have the time right now to get into this... But they are said to be in more than one place at one time basically. When the string theories are taken into effect (if they are true) I don't know that matter would behave as currently expected in absolute zero in 11-dimensional space (lol, I said I'm sorry... and I'm not just throwing dimensions and concepts out there because they sound good, they are really said to exist ).

[X Zolon]

O_O

Please continue when you have the time, this is cool

[Stargate3216]

Matter stops moving at apslute zero.

[Xemem]

In numeration there is no absolute zero. simpely put zero, is nothing. the absence of measurment, a void ect...just like how black is not a color but what we precieve as the absence of color.

the place of zero is only good as a place holder(as was the origanl intention for said "number" )

just as you can continue counting upwards (infinity), the only true number(as all other numbers are just a way of saying "this many ones concerently") is "1", and this can be infinately divided into fractions.

of course this cancels out the rule of thumb that all things that have a beggining have an end. leaving one in a "wave or partical?" state of mind.

So once again rules, guidlines, laws ect. only work within peramiters.

of course sence this whole question is posed off a "what if" stance. An answer can be produced....

energy is indestrutable...how ever it is transferable and convertable. meaning that while all kenetics would cease at such a point in measurment, it is jnot destroyed, but either converted or transferd(a massive discharge could be expected, wich unlike atom splitting, would be chain-reactionary, in effect altering the universe...so um lets not figure it out where it aplies and make a nifty experiment lol.

Until scientists find a way to cancel out the background radiation of our universe we won't be able to see absolute zero.

And cspace, I know this is kinda dead(last post before me was some time ago)...
However if you happen by this again, could you explian what you think red shift has to do with the nature and effect of all things at the singularity(beyond seing "the beggining")?

This post has been edited by esron: 11 December 2004 - 05:57 AM