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endothermic Options
Daemon
Posted: Tuesday, January 5, 2016 12:00:00 AM
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endothermic

(adjective) Characterized by or causing the absorption of heat; endoergic.

Synonyms: heat-absorbing, endothermal

Usage: Endothermic reactions are often described as reactions that "feel cold," and they contrast with exothermic reactions, in which heat is released.
Mehrdad77
Posted: Tuesday, January 5, 2016 12:36:44 AM

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endothermic (adj.)
1866, from French endothermique; see endo- + thermal= heat.

Mehrdad77
Posted: Tuesday, January 5, 2016 12:37:38 AM

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An endothermic reaction is one that absorbs or uses heat energy. Just ask a melting snowman about it.
Mehrdad77
Posted: Tuesday, January 5, 2016 12:38:10 AM

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What do green leaves, boiled eggs, and split gas molecules have in common? They have all undergone endothermic reactions, absorbing heat. But just because there’s heat involved doesn’t mean an endothermic reaction is the cause. Its polar — er thermal — opposite, exothermic describes a reaction that makes or gives off heat. It can be easy to confuse the two, but if you can remember that endo means “in” and exo means "out," the heat might not get to you so much.
Irma Crespo
Posted: Tuesday, January 5, 2016 2:16:59 AM

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Adj. 1. endothermic - (of a chemical reaction or compound) occurring or formed with absorption of heat
endothermal, heat-absorbing
endoergic, energy-absorbing - (of a nuclear reaction) occurring with absorption of energy
exothermal, exothermic, heat-releasing - (of a chemical reaction or compound) occurring or formed with the liberation of heat
monamagda
Posted: Tuesday, January 5, 2016 8:37:54 AM

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Endothermic reactions are fairly common.

Endothermic Example: One of the most common examples of an endothermic reaction can be found in your garden. Photosynthesis, the reaction which allows plants to use sunlight to produce food and energy. (chlorophyll is used to react carbon dioxide plus water plus energy to make glucose and oxygen)


Photosynthesis.



http://chemistry.about.com/od/lecturenotesl3/a/endorxns.htm
Milica Boghunovich
Posted: Tuesday, January 5, 2016 10:27:27 AM
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monamagda wrote:
Endothermic reactions are fairly common.

Endothermic Example: One of the most common examples of an endothermic reaction can be found in your garden. Photosynthesis, the reaction which allows plants to use sunlight to produce food and energy. (chlorophyll is used to react carbon dioxide plus water plus energy to make glucose and oxygen)


Photosynthesis.



http://chemistry.about.com/od/lecturenotesl3/a/endorxns.htm


Thank you for this excellent example! Let's show more respect to the trees for all the air we breathe!
Rahul Goyal
Posted: Tuesday, January 5, 2016 1:32:10 PM

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Just wanted to also clarify that it take 6 molecules of CO2 and H2O each to create starch C6H12O6 and releases 6 molecules of O2 into the environment.

Also if we would would have evolved from a cold blooded species, we would not have felt cold. However, it is observed that the cold blooded species tend to be sluggish when its cold. So, if we were cold blooded and it was cold outside, our elders would have said wear a sweater its slow outside :D
gerry
Posted: Tuesday, January 5, 2016 3:04:23 PM
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More for some less for others
Calcifer Y
Posted: Tuesday, January 5, 2016 5:55:18 PM

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Kanji of the Day



NETSU, atsu(i), rè


Jōyō Kanji : 4th Grade (JLPT 3)

RADICAL 86

Strokes 15-4-11

Frequency 644

COMPOUNDS

❶ⓐ (source of warmth) heat

ⓑ [also prefix] heat energy, thermo-

ⓒ heat, make hot

高熱 kōnetsu intense heat; high fever

加熱 kanetsu heating

光熱費 kōnetsuhi fuel and electricity expenses

地熱 jinetsu (=chinetsu) terrestrial heat

耐熱性 tainetsusei heat-resisting property

熱機関 netsukikan heat engine, thermomotor

熱原子核 netsugenshikaku thermal nucleus

過熱する kanetsu suru overheat, superheat

❷ [also suffix] (abnormal bodily heat) fever, temperature

熱病 netsubyō fever

発熱 hatsunetsu generation of heat; attack of fever

微熱 binetsu slight fever

産褥熱 sanjokunetsu puerperal fever

❸ [original meaning] hot, boiling

熱湯 nettō boiling water

熱帯 nettai tropics, torrid zone

熱気 nekki hot air, heat; fevered air, enthusiasm

射熱 shakunetsu heat

④ (showing intense feeling) hot (with excitement), fervent, passionate, ardent, enthusiastic, earnest

熱意 netsui zeal, ardor, enthusiasm

熱心に nesshin ni enthusiastically, zealously, fervently, earnestly

熱戦 nessen hot contest, hard fight

熱中する netchū suru be absorbed in, become enthusiastic

吸熱 kyūnetsu endothermal, heat-absorbing, endothermic



endothermic


熱望 netsubō fervent hope... earnest desire

熱烈な netsuretsu na ardent, fervent, vehement

熱血漢 nekketsukan hot-blooded man

情熱 jōnetsu passion, enthusiasm

❺ [suffix] fever, craze, enthusiasm, mania

野球熱 yakyūnetsu baseball fever, enthusiasm for baseball

海外留学熱 kaigai-ryūgakunetsu craze for studying abroad

投機熱 tōkinetsu speculation fever

INDEPENDENT

【netsu 熱】 heat; fever; enthusiasm, passion

勉強に熱が入る benkyō ni netsu ga hairu become very keen on one's studies

熱お上げる netsu o ageru become enthusiastic

【nessuru 熱する】 heat, make hot; become hot, get excited

熱し易い nesshiyasui excitable

KUN

【atsu(i) 熱い】

➀ hot (to the touch), heated

熱さ atsusa heat

熱いコーヒー atsui kōhī hot coffee

②ⓐ hot (with excitement), passionate

ⓑ be madly in love

熱い仲だ atsui naka da be sweet on each other

SYNONYMS

❶ⓐ heat

SUMMER HEAT



SHO, atsu(i), shū


ⓑ raise the temperature

WARM (a thing)



atata(meru)


WARM (the air)



DAN, NON, atata(ka), atata(kai), atata(maru), atata(meru), nuǎn


❷ diseases and disease symptoms

INFLAMMATION



EN, honō, yán


SMALLPOX



TŌ, dòu


DIARRHEA



RI, lì


diarrhea



KA, GE, shita, shita, shimo, moto, sa(geru), sa(garu), kuda(ru), kuda(ri), kuda(su), -kuda(su), kuda(saru), o(rosu), o(riru), xià


hot

HOT (weather)



atsu(i)


scorching



EN, honō, yán


WARM



ON, atata(ka), atata(kai), atata(maru), atata(meru), wēn


WARM (esp. weather)



DAN, NON, atata(ka), atata(kai), atata(maru), atata(meru), nuǎn


④ eager

DEVOTED



TOKU, atsu(i), dǔ


eager



SETSU, SAI, ki(ru), -ki(ru), ki(ri), -ki(ri), -gi(ri), ki(reru), -ki(reru), ki(re), -ki(re), -gi(re), qiē, qiè


EARNEST



KON, nengo(ro), kěn


❺ mania and maniac

maniac



KYŌ, kuru(u), kuru(oshii), kuàng


maniac



MA, mó


infatuated



CHI, shi(reru), chī


USAGE

atsui

熱い

➀ hot (to the touch), heated

②ⓐ hot (with excitement), passionate

ⓑ be madly in love

暑い

hot (weather), warm, sultry

HOMOPHONES

atsui ⇒ 

ART RELATION







Hans Richter, Dada head variation Arp, 1958
Huile et collage sur toile [oil and collage on canvas] 69 x 49 cm
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