Is Frequency : Temperature Angular Momentum : Entropy ?

AI Thread Summary
The discussion explores the relationship between angular momentum and entropy, comparing it to the relationship between frequency and temperature. It suggests that entropy from radiative heat transfer may correspond to the loss of angular momentum carried away by photons. However, participants note that while photons do carry angular momentum, the connection between atomic angular momentum loss and larger convection processes involves different energy dynamics. The conversation also touches on the idea that the universe's entropy increase could stem from larger structures accumulating angular momentum, which is then redistributed through radiation. Ultimately, the relationship between these properties remains complex and speculative.
kmarinas86
Messages
974
Reaction score
1
Is "Frequency : Temperature :: Angular Momentum : Entropy" ?

Does angular momentum relate to entropy, both of which are extensive properties, in a way analogous (or counter-analogously) to the way that frequency relates to temperature, both of which are intensive properties? My thought that was that, maybe, entropy due to radiative heat transfer corresponds to the loss of angular momentum being carried away by photons, or that entropy due to other forms of heat transfer was due to conversion of some angular momentum from the smaller electronic, atomic, and molecular domains to a much larger macroscopic domain, such as in the form of convection cells which are generated by pressure differentials acting in opposite directions. Could the gain in entropy in the universe simply be the result of accumulating angular momenta into ever-so-larger cell structures while radiation carries away some of this angular momenta?
 
Science news on Phys.org


Does angular momentum relate to entropy
Everything is related to everything else.
entropy due to radiative heat transfer corresponds to the loss of angular momentum being carried away by photons
photons do carry away angular momentum - but entropy in this situation is usually understood in terms of available states. This goes to whatever next absorbs the photon. But a direct link between the angular momenta loss from atoms to angular momentum in convection? These two are different processes involving different energies.
Could the gain in entropy in the universe simply be the result of accumulating angular momenta into ever-so-larger cell structures while radiation carries away some of this angular momenta?
You can speculate about anything I guess. You also get increasing entropy from large cell structures breaking down into smaller and smaller units while radiation redistributes momentum.
 
Thread 'Thermo Hydrodynamic Effect'
Vídeo: The footage was filmed in real time. The rotor takes advantage of the thermal agitation of the water. The agitation is uniform, so the resultant is zero. When the aluminum cylinders containing frozen water are immersed in the water, about 30% of their surface is in contact with the water, and the rest is thermally insulated by styrofoam. This creates an imbalance in the agitation: the cold side of the water "shrinks," so that the hot side pushes the cylinders toward the cold...
Back
Top