Does the Maximum Entropy of a Black Hole Allow for Hawking Radiation?

AI Thread Summary
A black hole is theorized to contain the maximum entropy corresponding to its mass, aligning with the third law of thermodynamics, which states that entropy generally increases. The discussion raises a question about how Hawking Radiation, which leads to black hole evaporation, can occur if the black hole already possesses maximum entropy. It suggests that the entropy bound, known as the Bekenstein bound, applies to a limited region of space, while Hawking radiation is detected at a distance, or "at infinity." This raises intriguing questions about the thermodynamic implications of black hole evaporation and the nature of entropy in such processes. The relationship between black hole entropy and Hawking radiation remains a complex and unresolved topic in theoretical physics.
TriTertButoxy
Messages
190
Reaction score
0
I originally posted this question in the subsection "Beyond the Standard Model." Unfortunately, nobody replied. Hopefully, someone here might be more insightful.

I read somewhere that a system consisting of a single black hole contains the maximum possible amount of entropy represented by the mass of the black hole. The third law of thermodynamics says that entropy must increase, in general, for all processes.

So, suppose I consider the Hawking Radiation -- the process by which Black Holes evaporate. If the black hole contains the maximal amount of entropy, how does Hawking Radiation occur from a thermodynamic standpoint?
 
Astronomy news on Phys.org
I guess that the point is that the entropy bound given by the entropy of a black hole (the Bekenstein bound) refers to a bounded region of space. The detection of Hawking radiation, on the contrary, occurs "at infinity".
 
Last edited:
Publication: Redox-driven mineral and organic associations in Jezero Crater, Mars Article: NASA Says Mars Rover Discovered Potential Biosignature Last Year Press conference The ~100 authors don't find a good way this could have formed without life, but also can't rule it out. Now that they have shared their findings with the larger community someone else might find an explanation - or maybe it was actually made by life.
TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
Back
Top