Question

What happens if a black hole dies?

Answer 1

It will shrink then evaporate.

Explanation:

A black hole radiates energy, which is named after Stephen Hawking, the Hawking Radiation. As it radiates, it shrinks and then after sometime evaporate.

More infos here:
http://curious.astro.cornell.edu/about-us/87-the-universe/black-holes-and-quasars/formation-and-evolution-of-black-holes/447-do-black-holes-die-if-so-how-beginner

http://pics-about-space.com/how-do-black-holes-die?p=4