Yuav ua li cas helium nuclei fuse tsim carbon nuclei?
Yuav ua li cas helium nuclei fuse tsim carbon nuclei?

Video: Yuav ua li cas helium nuclei fuse tsim carbon nuclei?

Video: Yuav ua li cas helium nuclei fuse tsim carbon nuclei?
Video: pob txha ntses daig caj pas lawm yuav ua li cas 2024, Kaum ib hlis
Anonim

Ntawm qhov kub thiab txias txaus txaus, 3-lub cev cov tshuaj tiv thaiv hu ua triple alpha txheej txheem ua tau tshwm sim: ob helium nuclei ("alpha hais") fuse ua tsis ruaj tsis khov beryllium. Yog lwm tus helium nucleus tuaj yeem fuse nrog beryllium nucleus ua ntej nws decays, ruaj khov carbon yog tsim nrog ib tug gamma rays.

Raws li txoj cai, muaj pes tsawg helium nuclei fuse ua ke thaum ua cov pa roj carbon?

peb

Tsis tas li ntawd, dab tsi nuclei fuse tsim oxygen? Ob lub helium nuclei fuse tsim a nucleus ntawm Dab tsi nuclei fuse tsim Oxygen ? Tseeb lossis cuav: Hnub qub yog qhov loj ntawm lub hnub thiab tuaj yeem tsim cov ntsiab lus hnyav dua Oxygen.

Ib yam li ib tug yuav nug, ua li cas helium fuse rau hauv carbon?

Helium , ua ib tug loj nuclei tshaj hydrogen, yuav tsum tau ntau zog kinetic rau fuse , uas txhais tau tias kub dua. Ntawm 100 lab degrees, helium tuaj yeem hloov mus rau carbon los ntawm cov txheej txheem triple-α. Lub zog tso tawm los ntawm cov txheej txheem triple-α txuas ntxiv kom sov cov tub ntxhais nce nws qhov kub thiab txias ntau dua.

Cov txheej txheem ntawm helium fusion yog dab tsi?

Kev sib xyaw los yog kev fusion ntawm peb alpha hais ( helium nuclei 4Nws) tsim ib tug carbon nucleus (12C) lub npe hu ua triple alpha txheej txheem . Cov txheej txheem fusion tsis yog txhua yam yooj yim vim tias tsis muaj qhov kev teeb tsa ruaj khov nrog atomic loj ntawm 8 (8Be) uas yog tsim los ntawm lub kev fusion ntawm ob 4Nws nuclei.

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