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单词 exothermic
释义

Definition of exothermic in English:

exothermic

adjective ˌɛksə(ʊ)ˈθəːmɪkˌɛksoʊˈθərmɪk
Chemistry
  • 1(of a reaction or process) accompanied by the release of heat.

    〔化〕(反应,过程)放热的。ENDOTHERMIC (义项1)的反义词

    The opposite of endothermic (sense 1)
    Example sentencesExamples
    • For these exothermic processes, the solubility decreases with an increase in temperature.
    • Sodium hydroxide dissolved into water is an exothermic process, ammonium nitrate dissolved in water is an endothermic process.
    • The rusting of iron is an exothermic reaction and this process is used in hand warmers which are utilized in cold regions.
    • Inside the mold, the liquid undergoes an exothermic chemical reaction, which forms the polyurethane polymer in the mold.
    • When fireworks are ignited, the chemical compounds react with each other in an exothermic reaction - releasing energy.
    1. 1.1 (of a compound) formed from its constituent elements with a net release of heat.
      (化合物)放热形成的
      Example sentencesExamples
      • Little heat is needed in the roasting of sulfide ores because the oxidation of the sulfide ion to sulfur dioxide is exothermic.

Derivatives

  • exothermal

  • adjective
    Chemistry
  • exothermally

  • adverb
    Chemistry
  • exothermically

  • adverb
    Chemistry
    • This is because fluorine generally reacts exothermically to form products with stable C-F bonds.

Origin

Late 19th century: from French exothermique.

Definition of exothermic in US English:

exothermic

adjectiveˌɛksoʊˈθərmɪkˌeksōˈTHərmik
Chemistry
  • 1(of a reaction or process) accompanied by the release of heat.

    〔化〕(反应,过程)放热的。ENDOTHERMIC (义项1)的反义词

    The opposite of endothermic (sense 1)
    Example sentencesExamples
    • For these exothermic processes, the solubility decreases with an increase in temperature.
    • Sodium hydroxide dissolved into water is an exothermic process, ammonium nitrate dissolved in water is an endothermic process.
    • Inside the mold, the liquid undergoes an exothermic chemical reaction, which forms the polyurethane polymer in the mold.
    • When fireworks are ignited, the chemical compounds react with each other in an exothermic reaction - releasing energy.
    • The rusting of iron is an exothermic reaction and this process is used in hand warmers which are utilized in cold regions.
    1. 1.1 (of a compound) formed from its constituent elements with a net release of heat.
      (化合物)放热形成的
      Example sentencesExamples
      • Little heat is needed in the roasting of sulfide ores because the oxidation of the sulfide ion to sulfur dioxide is exothermic.

Origin

Late 19th century: from French exothermique.

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更新时间:2024/10/19 16:24:43