Cov lus teb twg txhais tau tias cov tshuaj tiv thaiv exothermic?

Cov txheej txheem:

Cov lus teb twg txhais tau tias cov tshuaj tiv thaiv exothermic?
Cov lus teb twg txhais tau tias cov tshuaj tiv thaiv exothermic?
Anonim

Cov lus teb twg txhais tau tias cov tshuaj tiv thaiv exothermic? txheej txheem uas lub zog tso tawm ua cua sov.

Dab tsi txhais cov tshuaj tiv thaiv exothermic?

Ib txheej txheem exothermic tso cua sov, ua rau qhov kub thiab txias ntawm ib puag ncig tam sim ntawd nce. Cov txheej txheem endothermic absorbs cua sov thiab ua kom qhov chaw nyob ib puag ncig."

Yuav ua li cas pov thawj qhov kev tawm tsam sab nraud?

Yog tias ob yam khoom sib xyaw ua ke thiab cua sov thiab lub teeb raug tsim, qhov no yog pov thawj muaj zog uas muaj qhov tshwm sim tshwm sim. Yog tias cua sov tau muab tawm, cov tshuaj tiv thaiv yog exothermic.

Puas yog exothermic tsis zoo lossis zoo?

Nyob rau hauv cov tshuaj tiv thaiv exothermic, lub zog raug tso tawm vim tias tag nrho lub zog ntawm cov khoom tsawg dua li tag nrho lub zog ntawm cov reactants. Vim li no, qhov kev hloov pauv hauv enthalpy, ΔH, rau kev tawm tsam sab nraud yuav ib txwm tsis zoo.

Koj paub li cas yog nws qhov exothermic lossis endothermic?

Hauv kev sib npaug tshuaj, qhov chaw ntawm lo lus "kub" tuaj yeem siv los txiav txim siab sai sai seb cov tshuaj tiv thaiv puas yog endothermic lossis exothermic. Yog cov cua sov tso tawm raws li cov khoom ntawm cov tshuaj tiv thaiv, cov tshuaj tiv thaiv yog exothermic. Yog tias cua sov tau teev nyob rau sab ntawm cov reactants, cov tshuaj tiv thaiv yog endothermic.

Pom zoo: