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exothermic
This term describes a specific thermodynamic process where a system sheds energy to its surroundings. It is most frequently encountered in chemistry and physics to describe reactions that feel hot to the touch, as the energy released increases the temperature of the immediate environment.
In a technical context, it is the direct opposite of endothermic. While endothermic processes absorb heat and often feel cold, exothermic processes are characterized by a negative change in enthalpy, signifying that the products have less energy than the reactants.
Meanings
Examples
The reaction is exothermic, so the beaker feels warm to the touch.
The rapid oxidation of iron in hand warmers is an exothermic process.
We need to control the temperature because the reaction is highly exothermic.
The catalyst accelerates the exothermic decomposition of the compound.
I wonder if this chemical bond formation is exothermic.
The sudden release of heat indicates an exothermic reaction.
Many combustion reactions are naturally exothermic.
Many combustion reactions are naturally exothermic.