From what I understand, due to Hawking radiation, black holes lose mass in the form of energy (electromagnetic radiation), with these characteristics:
- The larger the black hole, the less energy it gives off and the slower it evaporates.
- As it loses mass and shrinks, it begins evaporating faster.
- At the end of its life, it approaches infinite evaporation due to its mass approaching zero.
- Thus a black hole dies in a burst of radiation as the last bit of mass inside it explodes into radiative energy.
Given that a Schwarzschild black hole's evaporation rate and lifetime is dependent only on it's mass, all black holes will die identically.
However, I have no idea how fast a black hole actually evaporates.
How much energy is released in the final second of a black hole's life? Equivalently, how much does a black hole one second from death weigh?
And how does a black hole's death compare to a nuclear weapon?