exothermic
/,eksou'θə:məl/ Cách viết khác : (exothermic) /,eksou'θə:mik/
Definition
- Adjective:
- Releasing heat: Describes a process, especially a chemical reaction, that releases energy in the form of heat into its surroundings. The system loses energy.
- Characterized by heat liberation: Pertaining to a compound whose formation from its elements is accompanied by the release of heat.
Examples of Usage
- Adjective:
- The combustion of wood is a classic exothermic reaction.
- When an exothermic process occurs, the temperature of the surroundings increases.
- The formation of water from hydrogen and oxygen is highly exothermic.
Advanced Usage
- Exothermicity (noun): The quality or degree of being exothermic; the amount of heat released.
- The exothermicity of the reaction was measured using a calorimeter.
- Exothermically (adverb): In an exothermic manner.
- The compounds reacted exothermically, requiring careful temperature control.
Variants and Related Words
- Exothermal (adjective): A less common variant with the same meaning as .
- Endothermic (adjective): The direct antonym, meaning absorbing heat from the surroundings.
Synonyms
- Heat-releasing
- Exoergic (used in physics and chemistry, often for nuclear reactions)
Related Phrases / Collocations
- Exothermic reaction: The most common collocation.
- Exothermic process: A broader term that can include physical changes like condensation as well as chemical reactions.
- Exothermic peak: A term used in thermal analysis (e.g., DSC) to indicate a point where heat is released.
Adjective
-
(of a chemical reaction or compound) occurring or formed with the liberation of heat
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