exothermic

/,eksou'θə:məl/ Cách viết khác : (exothermic) /,eksou'θə:mik/

Thân thiện

The science teacher demonstrates an exothermic reaction in the lab.

Definition

1. 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.

Học thuật

Adjective

1. (of a chemical reaction or compound) occurring or formed with the liberation of heat

Từ đồng nghĩa

• exothermal
• heat-releasing