Tag: Hydrogen fuel

Nuclear fission and fusion have the highest energy densities known, with matter–antimatter annihilation topping the list as the most powerful reaction. The question of which yields more energy is complex, depending on whether you're measuring by mass, volume, or overall real-world output.

Nuclear fusion releases millions of times more energy per kilogram than the chemical reactions that power our cars and homes, giving a clear winner in the question of what fuel releases the most energy. However, the answer is complex and depends on the specific type of energy release being considered.

A single gram of fat contains more than twice the energy of a gram of carbohydrates or protein. This stark difference highlights a fundamental principle of bioenergetics when exploring which molecule carries the most energy for living organisms.