Puas yog cov txheej txheem soluble endothermic lossis exothermic?

Cov txheej txheem:

Puas yog cov txheej txheem soluble endothermic lossis exothermic?
Puas yog cov txheej txheem soluble endothermic lossis exothermic?
Anonim

Tus txheej txheem ntawm kev sib cais yog exothermic thaum ntau lub zog tawm thaum cov dej molecules "daim ntawv cog lus" rau cov kuab tshuaj dua yog siv los rub cov kua dej sib nrug. Vim tias muaj zog ntau dua li siv, cov molecules ntawm cov tshuaj txav nrawm dua, ua rau qhov kub thiab txias.

YPuas yog yaj hauv dej endothermic lossis exothermic?

2. Cov txheej txheem twg yog endothermic thiab qhov twg yog exothermic? Soluble hauv dej yog txheej txheem exothermic.

Puas yog qhov tawg NaCl endothermic lossis exothermic?

Dissolution of NaCl hauv dej Dissolution of sodium chloride hauv dej yog endothermic.

Puas yog dej khov melting endothermic lossis exothermic?

Lub zog no rhuav tshem cov kev sib khi nruj hauv cov dej khov, thiab ua rau cov dej molecules txav nrawm dua thiab sib tsoo ntau zaus. Yog li ntawd, qhov kub ntawm cov dej khov nce thiab nws hloov mus rau hauv dej! Yeej, cov dej khov yaj yog cov tshuaj tiv thaiv endothermic vim tias cov dej khov absorbs (kub) lub zog, uas ua rau muaj kev hloov pauv.

Puas ua qe endothermic lossis exothermic?

The endothermic reaction piav qhia yog ua noj qe. Nyob rau hauv tus txheej txheem, lub tshav kub ntawm lub lauj kaub yog absorbed los ntawm lub qe, uas yog txheej txheem ntawm nws ua noj, yog li ntawd qhov kawg tshwm sim yog ib tug siav qe.

Pom zoo:

Nthuav cov khoom
Puas yog entrees thiab appetizers tib yam?
Nyeem ntxiv

Puas yog entrees thiab appetizers tib yam?

Qhov txawv ntawm appetizer thiab entree yog nyob rau hauv Teb Chaws Asmeskas, an appetizer yog ib qho me me ntawm cov zaub mov noj ua ntej noj mov tseem ceeb los txhawb kev qab los noj mov thaum entree yog lub ntsiab ntawm kev noj mov. Hauv Tebchaws Meskas thiab qee qhov ntawm Canada, appetizer thiab entrée xa mus rau ob feem ntawm pluas noj.

Vim li cas colgate chav ua noj tsis ua haujlwm?
Nyeem ntxiv

Vim li cas colgate chav ua noj tsis ua haujlwm?

Lawv tsis paub meej tias yuav xav li cas, thiab yog li, cov khoom lag luam tsis nyob ntawm lub txee khov rau ntev heev. … Kuv xav tias ib qho laj thawj rau lawv qhov tsis ua tiav yog vim lawv ua li ntawd: siv lub npe lag luam los ua lag luam cov khoom tshiab.

Los ntawm tus nqi lag luam?
Nyeem ntxiv

Los ntawm tus nqi lag luam?

Tus nqi lag luam yog lo lus siv los piav qhia ntau npaum li cas cov cuab tam lossis ib lub tuam txhab muaj nqis ntawm kev lag luam nyiaj txiag, raws li cov neeg koom ua lag luam. Nws yog feem ntau siv los xa mus rau kev lag luam peev ntawm ib lub tuam txhab, uas yog xam los ntawm kev muab cov lej sib faib hauv kev ncig los ntawm tus nqi lag luam tam sim no.