The absolute zero?

Question

What happens when the temperature reaches the absolute zero?

Then what is the absolute zero temperature?

Answer 1

For a substance, all of the electrons in all of the atoms and molecules are at their minimum quantum energy state. All the bonds between atoms and molecules are at their minimum energy states. All atoms in a gas, liquid, or solid have no thermal energy, so they are motionless with respect to each other.

Nothing magic happens, but it's very hard to remove every last bit of thermal energy from a system. In 2003, an MIT experiment set up a bizarre situation and got within half a billionth (10 ^ -9) of a degree.

Answer 2

The concept of absolute zero is that there is no more thermal energy in whatever object reaches that temperature. A lack of thermal energy means that the object has no movement in it at all on any level. So at that point, even electrons (which have mass, albeit very little) would stop moving, and all molecular cohesion would break up.

You'd end up with a pile of protons, neutrons, and electrons, until thermal energy were reapplied, at which point they would recombine in ways that would be difficult or impossible to predict. I'd be one way of doing wild but real alchemy, though.

Answer 3

Nothing. Absolutely nothing, because it is the temperature at which all thermal energy is gone and all molecular motion ceases. This is theoretically impossible to attain, however.

Answer 4

Theoretically, at absolute zero, or 0 Kelvin, all matter stops moving.

Answer 5

It doesn't.

And I ain't going through the physics to prove it, it is long, tedious, and oh so complicated.