Which of the following best describes "detonation"?

Detonation is characterized by the rapid release of energy from explosive materials, leading to a powerful explosion. This process occurs when the explosive substance undergoes a chemical reaction that transforms it into gas very quickly, causing a shock wave that propagates through the surrounding materials. This reaction is distinct from deflagration, which involves a slower combustion process.

In this context, the correct choice highlights the essence of detonation — the velocity and intensity at which the energy is released result in a significant event, such as an explosion. This understanding is crucial for safety professionals working with explosives, as it impacts how they assess risks and manage explosive materials in various environments. The other options do not encapsulate the concept of detonation accurately; for instance, slow burning or gradual breakdown would describe different types of reactions or processes involving explosives but do not reflect the rapid and violent nature of detonation.