Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Black Hole Evaporation.

  1. Dec 11, 2011 #1
    During black hole thermal radiation can mass be radiated while entropy stays? Is it possible that entropy stays in the singularity?
  2. jcsd
  3. Dec 23, 2011 #2
    According to general relativity (and a few contributions from high-energy physics) Black holes should obey the 'no-hair theorem', which states that there are only a few very basic parameters which fully describe the nature of a black-hole (note: 'black-hole' does not equal 'singularity'). Entropy is not one of the fundamental parameters---instead, entropy is a function of the black hole's surface area, which is a function of its mass (and a few other things). If the mass decreases, so does the entropy. If there is no mass, there is no entropy.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Black Hole Evaporation.
  1. Black Hole Evaporation (Replies: 2)

  2. Black hole evaporation (Replies: 21)