Which factor commonly initiates explosive decomposition?

Which factor commonly initiates explosive decomposition?

• A. Light exposure
• B. Water exposure
• C. Mechanical shock
• D. Heat or other form of energy input

Answer: (D)

Initiation of explosive decomposition happens when external energy raises the material’s internal energy enough to overcome the bonds holding it together, causing rapid breakdown and gas formation. Heat or any form of energy input that raises temperature—like heat itself, friction, impact, or a spark—provides the broad, common trigger that starts this fast, self-accelerating reaction. Among the options, heat or other form of energy input is the best choice because it covers the general way most energetic materials are brought to the point of decomposition. Light exposure isn’t a typical universal trigger for most energetic substances, water exposure doesn’t generally initiate decomposition, and mechanical shock can initiate some materials but isn’t as broadly applicable as a general energy input.

Initiation of explosive decomposition happens when external energy raises the material’s internal energy enough to overcome the bonds holding it together, causing rapid breakdown and gas formation. Heat or any form of energy input that raises temperature—like heat itself, friction, impact, or a spark—provides the broad, common trigger that starts this fast, self-accelerating reaction. Among the options, heat or other form of energy input is the best choice because it covers the general way most energetic materials are brought to the point of decomposition. Light exposure isn’t a typical universal trigger for most energetic substances, water exposure doesn’t generally initiate decomposition, and mechanical shock can initiate some materials but isn’t as broadly applicable as a general energy input.