An Introduction to Modern Astrophysics · Problem 10.3
The Sun — Carroll & Ostlie
Physics — Astrophysics · solar-chemical-energy
Problem
Assuming that 10 eV could be released by every atom in the Sun through chemical reactions, estimate how long the Sun could shine at its current rate through chemical processes alone. For simplicity, assume that the Sun is composed entirely of hydrogen. Is it possible that the Sun's energy is entirely chemical? Why or why not?