21
Physics, Astronomy & Cosmology / State of a system at absolute zero?
« on: 17/03/2020 12:19:55 »
I am very confused about absolute zero temperature. Please help me answer these questions:
1. How does it require infinite amount of work to reach absolute zero temperature? Which equations also tell that?
2. Assuming it is attained, that would make a system's internal kinetic energy of atoms to be 0, the system would possess 0 energy and hence according to a version of HUP, it would mean the system's atoms would last for an infinite amount of time, is this reasoning correct?
3. Upon reaching absolute zero, the atoms are fixed in position and hence their momentum would be undefined, and people speculate their wave function would become infinite, and hence the atoms could theoretically be everywhere. Please drop a numerical to explain this.
4. If an absolute zero temperature system came into contact with any form of thermal radiation or photons, would that disperse all the atoms of the system apart? What would be left of the system? Or would the system still remain intact? What would be the state of its atoms?
5. What color would the absolute zero system appear from human eye perspective? Would the system be able to absorb and reflect light?
6. What would be the mass of absolute zero substance? How much would the mass change?
7. It appears to be strikingly similar to time being stopped for a system, which is impossible since it violates universal speed limit, but assuming it is achievable, what effects does this have on space-time curvature around the system and consequently gravity which has a finite speed?
8. What can be said about the entropy of the system? And also the entropy of the system upon coming into contact with thermal radiation?
9. How much energy would be required for a body for it to achieve absolute zero temperature? Please explain with equation. Can Newton's law of cooling be applied?
1. How does it require infinite amount of work to reach absolute zero temperature? Which equations also tell that?
2. Assuming it is attained, that would make a system's internal kinetic energy of atoms to be 0, the system would possess 0 energy and hence according to a version of HUP, it would mean the system's atoms would last for an infinite amount of time, is this reasoning correct?
3. Upon reaching absolute zero, the atoms are fixed in position and hence their momentum would be undefined, and people speculate their wave function would become infinite, and hence the atoms could theoretically be everywhere. Please drop a numerical to explain this.
4. If an absolute zero temperature system came into contact with any form of thermal radiation or photons, would that disperse all the atoms of the system apart? What would be left of the system? Or would the system still remain intact? What would be the state of its atoms?
5. What color would the absolute zero system appear from human eye perspective? Would the system be able to absorb and reflect light?
6. What would be the mass of absolute zero substance? How much would the mass change?
7. It appears to be strikingly similar to time being stopped for a system, which is impossible since it violates universal speed limit, but assuming it is achievable, what effects does this have on space-time curvature around the system and consequently gravity which has a finite speed?
8. What can be said about the entropy of the system? And also the entropy of the system upon coming into contact with thermal radiation?
9. How much energy would be required for a body for it to achieve absolute zero temperature? Please explain with equation. Can Newton's law of cooling be applied?