Cov txheej txheem:
Video: Dab tsi tuaj yeem ua rau muaj kev cuam tshuam ntxiv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm cov rog yuav cuam tshuam rau kev sib cuam tshuam ntawm cov dej molecules?
1 Teb. Qhov tseeb, dej muaj tag nrho peb hom kev sib xyaw ua ke, nrog qhov muaj zog tshaj plaws yog hydrogen bonding. Txhua yam muaj London dispersion yuam cov kev sib cuam tshuam tsis muaj zog yog ib ntus dipoles uas tsim los ntawm kev hloov ntawm electrons nyob rau hauv ib lub molecule
Dab tsi yog qhov txawv ntawm kev cuam tshuam kev cuam tshuam thiab kev cuam tshuam cuam tshuam?
Paub qhov txawv ntawm kev cuam tshuam kev tsim kho thiab kev cuam tshuam puas tsuaj. Kev tsim kev cuam tshuam tshwm sim thaum lub crests ntawm ob nthwv dej ntxiv ua ke. Kev cuam tshuam kev puas tsuaj tshwm sim thaum lub crest ntawm ib yoj raug txo los ntawm lub trough ntawm lwm tus
Dab tsi cuam tshuam rau kev tshem cov choj ntsev muaj rau kev ua haujlwm ntawm txhua lub xov tooj ntawm tes electrochemical?
Yog tsis muaj ntsev choj, cov tshuaj nyob rau hauv lub anode compartment yuav ua tau zoo them thiab cov tshuaj nyob rau hauv lub cathode compartment yuav ua tsis zoo nqi, vim hais tias ntawm tus nqi imbalance, lub electrode cov tshuaj tiv thaiv yuav sai sai los mus rau ib tug nres, yog li ntawd nws yuav pab kom tswj tau qhov khiav. los ntawm electrons
Koj tuaj yeem qhia tau li cas yog tias muaj kev cuam tshuam rau pem hauv ntej lossis thim rov qab?
Yog tias K K, cov reactants tau txais kev pom zoo. Yog tias Q< K, cov khoom raug nyiam
Dab tsi yog qee qhov piv txwv ntawm kev cuam tshuam tsis zoo ntawm tib neeg ib puag ncig kev cuam tshuam?
Kev ua liaj ua teb tuaj yeem cuam tshuam tsis zoo rau peb ib puag ncig, suav nrog kev poob ntawm biodiversity, dej paug, kev hloov pauv huab cua, av yaig thiab muaj kuab paug