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单词 exothermic
释义
exothermic
adjective
chemistryspecialized
uk
/ˌek.səʊˈθɜː.mɪk/us
/ˌek.soʊˈθɜ˞ː.mɪk/
releasingheat:
放热的
In an exothermicreaction,energyisreleasedto thesurroundings.放热反应中会向周围释放能量。
Thereactionbetweenhydrogenandoxygenishighlyexothermic.氢与氧之间的反应高度放热。
Condensation andfreezingare exothermicprocesses.冷凝和冷冻是放热过程。
An exothermiccompoundisformedfromitselementsbyreleasingheatenergy.放热化合物由组成元素通过释放热能形成。
Compare
endothermic
More examples
  • Theproductionofammoniais an exothermicreaction.
  • Thebreakingofbondsis anendothermicprocessrequiringenergy, while the making ofbondsis an exothermicprocesswithenergybeingreleased.
  • Thereactionon thesurfaceis exothermic, so thegasesheatup.
  • Anuclearpowerplantis exothermic. Itgeneratestonsofheatinto thebiospherethat never would have been thereotherwise.
SMART Vocabulary: related words and phrases
Physical & chemical processes
  • absorbable
  • absorptive
  • absorptive capacity
  • acidification
  • addition reaction
  • condense
  • electrolysis
  • evaporate
  • evaporation
  • excitability
  • excitation
  • excite
  • exergonic
  • oxidize
  • redox
  • refraction
  • rehydrate
  • reliquefy
  • reliquify
  • solidify
See more results »

You can also find related words, phrases, and synonyms in the topics:

Chemistry - general words
(Definition ofexothermicfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

exothermic| American Dictionary

exothermic
adjective
[not gradable]chemistryus
/ˌek·soʊˈθɜr·mɪk/
describesachemicalreactionthatproducesheat
earth scienceus/ˌek·soʊˈθɜr·mɪk/
involvingthereleaseorlossofheat:
magnesiumstartsan exothermicreactioninwater.

exothermically

adverb[not gradable]us
/ˌek·soʊˈθɜr·mɪk·li/
(Definition ofexothermicfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofexothermic

exothermic
The analysis of the inner reaction-diffusion layer yields the heat flux produced by theexothermicreaction.
From theCambridge English Corpus
I n (3.7b) expressing the kinetic law governing the heat flux released by theexothermicreaction, we have only retained the flame temperature modification (#, $; 1).
From theCambridge English Corpus
This is because these eight reactions areexothermicwhereas the others are endothermic.
From theCambridge English Corpus
The reason for the low barrier is that the reaction is quiteexothermicat 20 kcal molx1.
From theCambridge English Corpus
Fusion reactions are studied worldwide on a large scale since about 1942 forexothermicreactions.
From theCambridge English Corpus
To be feasible this transfer must be close to thermoneutral (orexothermic), since the actual methane formation cannot start out at a too high energy.
From theCambridge English Corpus
After this, the resulting hydroxyl radical is immediately quenched in a stronglyexothermicstep.
From theCambridge English Corpus
This local maximum exists because the pressure behind the shock decreases as a result of theexothermicreaction and/or geometric expansion.
From theCambridge English Corpus
The reactions have no entrance barriers and are allexothermic.
From theCambridge English Corpus
Neuronal responses are typically slow in cold conditions with consequences for the survival ofexothermicorganisms.
From theCambridge English Corpus
In the case of propagating reaction fronts theexothermicchemical reaction plays the role of heating from below.
From theCambridge English Corpus
If we consider for example an upward propagatingexothermicchemical reaction, then the temperature of the medium below the reaction zone is greater than the temperature above it.
From theCambridge English Corpus
Clearly, for both primed and control seeds, reactions were still occurring and resulting in an overallexothermicheat flow after seeds had lost the ability to germinate.
From theCambridge English Corpus
All reactions were found to proceed without an entrance barrier, to have exit barriers well below the energy of the reactant molecules and to be stronglyexothermic.
From theCambridge English Corpus
The cause was found to be the result of an organometallic blue pigment which caused anexothermiccatalytic reaction with another additive in the foam.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/exothermic##
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更新时间：2024/12/28 12:13:50