Common Misconceptions

⚠️ Common Misconceptions

Misconception 1: "Exothermic means the products are hot"

Being exothermic does not mean the products themselves are hot — it means energy is transferred TO THE SURROUNDINGS, raising their temperature. The surroundings get hotter, not the products themselves. Rusting iron is exothermic but you can touch rust without getting burned — the energy is released very slowly.

Misconception 2: "Exothermic reactions create energy"

Energy is NEVER created or destroyed — it is transferred. In an exothermic reaction, energy is transferred from the chemical bonds of the reactants to the surroundings as heat. The law of conservation of energy always applies.

Misconception 3: "All reactions that get hot are exothermic — cold means endothermic"

The temperature change of the surroundings (including the solution) tells you whether a reaction is exothermic or endothermic. If the solution temperature RISES → exothermic. If it FALLS → endothermic. The key word is surroundings — not the reaction system itself.