Video: Puas yog lub zog tso tawm lossis absorbed hauv cov tshuaj tiv thaiv exothermic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A tshuaj tiv thaiv hauv qhov twg zog yog tso tawm mus rau ib puag ncig yog hu ua ib exothermic tshuaj tiv thaiv . Hauv hom no tshuaj tiv thaiv cov enthalpy, los yog khaws cia tshuaj zog , yog qis dua rau cov khoom lag luam dua li cov reactants. Thaum ammonium nitrate yaj hauv dej, zog yog nqus tau thiab dej txias.
Ntawm no, puas yog lub zog nqus los yog tso tawm hauv cov tshuaj tiv thaiv endothermic?
Yog li ntawd, ntau dua zog yog xav tau los rhuav cov bonds nyob rau hauv cov reactants tshaj li yog tso tawm thaum lub sij hawm tsim ntawm cov khoom. Qhov txawv hauv zog feem ntau yog nqus tau los ntawm ib puag ncig zoo li cua sov. Qhov no feem ntau ua rau txo qis ntawm qhov kub thiab txias tshuaj tiv thaiv sib tov. Tag nrho endothermic cov tshuaj tiv thaiv nqus lub zog.
Ib sab saum toj no, koj yuav ua li cas paub yog tias lub zog nqus los yog tso tawm? Yog kub yog nqus tau Thaum cov tshuaj tiv thaiv, Δ H ΔH ΔH yog qhov zoo; yog kub yog tso tawm , ces Δ H ΔH ΔH yog qhov tsis zoo.
Ib yam li ntawd, cov tshuaj tiv thaiv exothermic puas tso tawm lub zog?
Exothermic tshuaj tiv thaiv yog cov tshuaj tiv thaiv los yog txheej txheem uas tso dag zog , feem ntau yog nyob rau hauv daim ntawv ntawm tshav kub los yog lub teeb. Hauv ib exothermic tshuaj tiv thaiv , zog yog tso tawm vim tag nrho zog ntawm cov khoom yog tsawg tshaj li tag nrho zog ntawm cov reactants.
Dab tsi lub zog yog absorbed nyob rau hauv cov txheej txheem hom tshuaj tiv thaiv yog nws?
txheej txheem endothermic
Pom zoo:
Yuav ua li cas yog endothermic thiab exothermic cov tshuaj tiv thaiv nyob rau hauv daim duab lub zog?
Nyob rau hauv cov ntaub ntawv ntawm endothermic cov tshuaj tiv thaiv, cov reactants nyob rau hauv qis zog theem piv rau cov khoom - raws li qhia nyob rau hauv lub zog daim duab hauv qab no. Nyob rau hauv cov ntaub ntawv ntawm ib tug exothermic cov tshuaj tiv thaiv, cov reactants yog nyob rau hauv ib tug siab zog theem piv rau cov khoom, raws li qhia hauv qab no nyob rau hauv lub zog daim duab
Qhov nqus thiab tso tawm ntawm lub zog cuam tshuam li cas rau qhov kub thiab txias thaum lub sij hawm muaj tshuaj tiv thaiv?
Nyob rau hauv endothermic cov tshuaj tiv thaiv cov enthalpy ntawm cov khoom yog ntau dua cov enthalpy ntawm cov reactants. Vim tias cov tshuaj tiv thaiv tso tawm lossis nqus lub zog, lawv cuam tshuam rau qhov kub ntawm lawv ib puag ncig. Exothermic cov tshuaj tiv thaiv cua sov ua rau lawv ib puag ncig thaum cov tshuaj tiv thaiv endothermic txias rau lawv
Lub zog tso tawm hauv cov tshuaj tiv thaiv nuclear los ntawm qhov twg?
Nuclear zog los ntawm me me hloov pauv hauv nuclei raws li cov txheej txheem xov tooj cua tshwm sim. Hauv fission, loj nuclei tawg sib nrug thiab tso tawm lub zog; hauv fusion, me me nuclei sib koom ua ke thiab tso tawm lub zog
Vim li cas cov tshuaj tiv thaiv tso tawm lub zog?
Txhua yam tshuaj tiv thaiv muaj zog. Lub zog yog siv los rhuav tshem cov ntawv cog lus hauv cov reactants, thiab lub zog raug tso tawm thaum cov ntawv cog lus tshiab tsim hauv cov khoom. Zoo li cov tshuaj tiv thaiv combustion nyob rau hauv lub cub tawg, qee cov tshuaj tiv thaiv yuav tsum muaj zog tsawg dua los rhuav cov ntawv cog lus hauv cov reactants dua li tso tawm thaum daim ntawv cog lus tsim hauv cov khoom
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus