Video: Yuav ua li cas tiv thaiv ib tug dwarf dawb los ntawm tsoo mus rau lub qhov dub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A dwarf dawb lub hnub qub yuav raug nres los ntawm kev txuas ntxiv mus vaum vim tsis txaus loj uas qhib qhov rooj rau Electron Degeneracy los ua nws feem. Nws yog hu ua Neutron degeneracy siab. Yog vim li cas lub hnub qub neutron yuav tsis txuas ntxiv mus ua ib qho qhov dub.
Tsuas yog li ntawd, dab tsi tiv thaiv ib tug dwarf dawb los ntawm kev sib tsoo?
Dawb dwarfs Electron degeneracy siab yuav nres lub gravitational vaum ntawm lub hnub qub yog tias nws qhov hnyav qis dua Chandrasekhar txwv (1.44 hnub ci huab hwm coj). Qhov no yog lub siab uas tiv thaiv kab mob dawb hnub qub los ntawm kev sib tsoo.
Ib sab saum toj no, dab tsi ua kom ib tug ntsias dawb los ntawm kev tawg mus rau hauv lub qhov dub? Rau stellar masses tsawg dua li ntawm 1.44 hnub ci, lub zog los ntawm gravitational vaum tsis txaus rau tsim cov neutrons ntawm a neutron hnub qub , yog li ntawd vaum yog nres los ntawm electron degeneracy rau daim ntawv dwarfs dawb . Qhov no ua rau muaj kev kub ntxhov uas tiv thaiv ntxiv gravitational vaum.
Tsis tas li ntawd, dab tsi tiv thaiv lub hnub qub neutron los ntawm kev tawg mus rau lub qhov dub?
Lub quantum degeneracy siab tshwm sim los ntawm qhov tseeb tias tsis muaj ob lub electrons tuaj yeem tuav tib lub xeev quantum yog dab tsi tiv thaiv qhov dub los ntawm kev tsim kom txog rau thaum qhov chaw pib hla. Tshaj nws, thiab cov neutron hnub qub yuav ntxiv vaum tsim a qhov dub.
Ib tug neeg ntsias dawb puas tuaj yeem ua lub qhov dub?
Cov hnub qub loj tshaj plaws, nrog yim npaug ntawm lub hnub lossis ntau dua, yuav yeej tsis ua dawb dwarfs . Hloov chaw, thaum kawg ntawm lawv lub neej, lawv yuav tawg nyob rau hauv ib tug tsausmuag supernova, tawm hauv qab lub hnub qub neutron los yog qhov dub.
Pom zoo:
Qhov twg hauv qab no yuav tsum tau ntsib rau kev sib tsoo txoj kev xav ntawm cov tshuaj tiv thaiv tus nqi tuav?
Qhov twg hauv qab no yuav tsum tau ntsib rau kev sib tsoo txoj kev xav ntawm cov tshuaj tiv thaiv tus nqi tuav? - Lub reacting molecules yuav tsum sib tsoo nrog ib leeg. - Cov molecules yuav tsum sib tsoo nyob rau hauv ib qho kev taw qhia uas tuaj yeem ua rau rov kho cov atoms. -Cov reacting molecules yuav tsum sib tsoo nrog lub zog txaus
Yuav ua li cas rau lub zog nyob rau hauv ib tug exothermic tshuaj tiv thaiv?
Cov tshuaj tiv thaiv exothermic tshwm sim thaum lub zog siv los rhuav tshem cov ntawv cog lus hauv cov reactants (cov khoom pib) tsawg dua lub zog tso tawm thaum cov nyiaj tshiab tau tsim nyob rau hauv cov khoom (cov khoom koj xaus nrog). Combustion yog ib qho piv txwv ntawm cov tshuaj tiv thaiv exothermic - koj tuaj yeem hnov cov cua sov uas tau muab tawm yog tias koj nyob ze dhau
Yuav ua li cas rau lub zog nyob rau hauv ib tug endothermic cov tshuaj tiv thaiv?
Cov tshuaj tiv thaiv kab mob endothermic tshwm sim thaum lub zog siv los rhuav tshem cov ntawv cog lus hauv cov reactants ntau dua li lub zog muab tawm thaum cov ntawv cog lus tsim hauv cov khoom. Qhov no txhais tau hais tias tag nrho cov tshuaj tiv thaiv yuav siv lub zog, yog li ntawd muaj qhov kub thiab txias hauv ib puag ncig
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 rau kev thauj mus los ntawm qhov twg thiab vim li cas thiaj li xav tau lub zog rau kev thauj mus los?
Kev thauj mus los nquag yog txheej txheem uas yuav tsum tau txav cov molecules tawm tsam qhov concentration gradient. Cov txheej txheem yuav tsum muaj zog. Lub zog rau cov txheej txheem tau txais los ntawm kev rhuav tshem cov piam thaj siv oxygen hauv kev ua pa aerobic. ATP yog tsim thaum ua pa thiab tso tawm lub zog rau kev thauj mus los