English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Third Law of thermodynamics (ABSOLUTE ZERO)
Why is it that as the minimum temperature is approached, the further extraction of energy becomes more and more difficult?

2007-11-04 22:34:26 · 2 answers · asked by beachball_boink 1 in Science & Mathematics Physics

2 answers

Temperature of an atom is measured in degree kelvin.
One degree of temperature indicates the amount of energy counteracting the Gravity energy pressure which tends to push the atoms closer together.
The more temperature energy exists between the atoms ,the further appart the atoms live.

As we remove heat energy from between the atoms Gravity pressure brings then closer together.
There is a limit to how much energy can be removed from between the atoms.The Limit is called the absolute Zero
temperature energy.

At this point Gravity pressure is so compressed between the atoms ,that now a repulsion results. So the Gravity power that pushes the atoms together is at a maximum. and the atoms can no longer be pushed together any further by external Gravity pressure of space.
So the Atom relative to each other are at a stand still. Howeer this condition is only temporary because heat energy exists naturally in space form external sources.

Therefore near absolute Zero temperature can only exist momentarily and cannot be contiuously maintained. That is why laboratory tests cannot obtain absolute zero temperature energy exactly thought absolute Zero was very closely reached but not quite.
Therefore at absolute zero we have a FROZEN ATOM.
However it does not mean the its components are motionless. Its the contrary. When an atom is frozen the Electrons orbiting the Nucleus are now moving at the speed of light. Since this condition cannot occur without the atom breaking down, the aboslute zero temperature energy can never be actually reached.

2007-11-04 23:25:18 · answer #1 · answered by goring 6 · 0 0

Heat energy flows only from hot to cold (at least on average). Just as a river flows fastest where there is a steep gradient (and forms rapids), heat flows fastest where there is a steep temperature gradient. As absolute zero temperature is approached there is a nil gradient (nothing can be colder).

2007-11-04 23:22:53 · answer #2 · answered by Kes 7 · 0 0

fedest.com, questions and answers