Cov txheej txheem:

Dab tsi tuaj yeem ua rau muaj kev cuam tshuam ntxiv?
Dab tsi tuaj yeem ua rau muaj kev cuam tshuam ntxiv?

Video: Dab tsi tuaj yeem ua rau muaj kev cuam tshuam ntxiv?

Video: Dab tsi tuaj yeem ua rau muaj kev cuam tshuam ntxiv?
Video: Ua Dab Tsi Txhaum Koj - David Yang (New Song 2021) 2024, Kaum ib hlis
Anonim

Tag nrho cov nucleus faib ua ob feem loj hu ua 'daughter nuclei'. Ntxiv nrog rau cov khoom 'tus ntxhais', ob lossis peb lub neutrons kuj tawg tawm ntawm cov tshuaj tiv thaiv fission thiab cov no ua tau sib tsoo nrog lwm cov uranium nuclei rau ua rau muaj kev cuam tshuam ntxiv . Qhov no yog hu ua saw hlau tshuaj tiv thaiv.

Ua kom pom qhov no, fission tshuaj tiv thaiv yog dab tsi?

Hauv nuclear physics thiab nuclear chemistry, nuclear fission yog nuclear tshuaj tiv thaiv los yog cov txheej txheem radioactive decay nyob rau hauv uas lub nucleus ntawm ib tug atom splits rau hauv ob los yog ntau dua me me, sib zog nuclei. Fission yog ib daim ntawv ntawm nuclear transmutation vim hais tias qhov tshwm sim fragments tsis zoo ib yam li cov thawj atom.

Ib yam li ntawd, qhov twg nuclear fission tshwm sim? Nuclear fission tuaj yeem tshwm sim hauv ib nuclear tshuaj tiv thaiv. Ib qho piv txwv yuav yog nyob rau hauv nuclear fais fab nroj tsuag, qhov twg uranium yog lwj mus rau lwm yam khoom. Hauv qhov piv txwv no, ib lub neutron reacts nrog uranium-235 muab krypton-92, barium-141, thiab 3 neutrons.

Ntawm no, dab tsi yog qee qhov kev siv ntawm fission tshua?

Qee qhov kev siv ntawm fission cov tshuaj tiv thaiv yog:

  • Nws yog siv nyob rau hauv kev tsim hluav taws xob nyob rau hauv ib tug nuclear fais fab nroj tsuag.
  • Nws yog siv los ua ib lub foob pob nuclear.
  • Nws yog siv los tsim cov xov tooj cua isotopes rau kev kho mob. Nws tseem siv los tsim cov neutrons.
  • Neutrons yog siv rau kev lag luam.

Fission piv txwv yog dab tsi?

Fission yog qhov sib cais ntawm ib qho atomic nucleus rau hauv ob lossis ntau dua sib zog nuclei nrog lub zog tso tawm. Lub zog tso tawm los ntawm nuclear fission yog qhov tseem ceeb. Rau piv txwv , cov fission ntawm ib kilogram ntawm uranium tso tawm ntau npaum li lub zog li hlawv ib ncig ntawm plaub billion kilograms ntawm thee.

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