Cov txheej txheem:
Video: Dab tsi yog qee qhov piv txwv ntawm allotropes?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv ntawm Allotropes
Mus ntxiv tus carbon piv txwv , pob zeb diamond, tus carbon atoms yog sib txuas los ua ib qho tetrahedrallattice. Hauv graphite, tus atoms daim ntawv cog lus rau daim ntawv ntawm ahexagonal lattice. Lwm yam allotropes carbon includegraphene thiab fullerenes. O2 thiab ozone, ua3, yog allotropes ntawm oxygen.
Ua li no, piv txwv ntawm allotropes yog dab tsi?
Piv txwv li, cov allotropes ntawm carbon muaj xws li:
- pob zeb diamond, qhov twg cov pa roj carbon atoms sib koom ua ke hauv plaub-kab lattice kev npaj;
- graphite, qhov twg cov pa roj carbon atoms yog sib koom ua ke nyob rau hauv cov ntawv ntawm ib tug rau-sided lattice;
- graphene, ib nplooj ntawv ntawm graphite; thiab.
Tom qab, lo lus nug yog, Allotropic khoom yog dab tsi? Allotropy , lub hav zoov ntawm ib tug tshuaj nyob rau hauv ob los yog ntau tshaj cov ntaub ntawv, uas tej zaum yuav txawv nyob rau hauv kev npaj ntawm atoms incrystalline solids los yog tshwm sim ntawm molecules uas muaj sib txawv tus naj npawb ntawm atoms.
Ntawm no, Allotropy piav qhia nrog piv txwv li cas?
Piv txwv : Graphite thiab pob zeb diamond yog ob qho tib si allotropes ntawm carbon. O2 thiab ozone, O3, yog allotropes ntawm oxygen. Allotropes yog cov ntsiab lus uas muaj nyob rau hauv ob los yog ntau hom sib txawv hauv tib lub cev. Allotropes feem ntau txawv ntawm lub cev thiab tej zaum kuj txawv ntawm cov tshuaj lom neeg.
Cov ntsiab lus twg muaj nyob hauv cov ntawv Allotropic?
Gaseous oxygen, piv txwv li, muaj nyob hauv peb Cov ntaub ntawv allotropic : monatomic oxygen (O), diatomic molecule (O2), thiab hauv triatomic molecule hu ua ozone (O3). Ib qho piv txwv zoo ntawm kev sib txawv ntawm lub cev ntawm cov khoom allotropes yog cov pa roj carbon. Solidcarbon muaj nyob hauv ob cov ntaub ntawv allotropic : pob zeb diamond andgraphite.
Pom zoo:
Dab tsi yog cov nyhuv tshuaj ntawm hluav taws xob muab qee qhov piv txwv ntawm cov nyhuv tshuaj?
Ib qho piv txwv ntawm cov tshuaj muaj zog hauv cov hluav taws xob tam sim no yog electroplating. Hauv cov txheej txheem no, muaj cov kua dej uas muaj hluav taws xob dhau mus. qhov no yog ib qho piv txwv ntawm kev siv tshuaj lom neeg hauv hluav taws xob tam sim no
Dab tsi yog qee qhov piv txwv ntawm qhov sib npaug ntawm kev txav mus los?
Kev sib npaug ntawm Kev Sib Tw Rau Cov Khaub Ncaws Kev Ua Si nrawm nrawm, tsav tsheb, thiab txawm tias tsuas yog taug kev yog txhua txhua hnub piv txwv ntawm kev txav. Kev sib raug zoo ntawm cov khoom no yog hu ua qhov sib npaug ntawm kev txav
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb
Dab tsi yog qee qhov piv txwv ntawm lub neej tiag tiag ntawm cov haujlwm linear?
Teb Chaws Keeb Kwm: Ib tug neeg puas tuaj yeem muab rau kuv ua piv txwv ntawm kev ua haujlwm ntawm lub neej tiag tiag? Linear functions tshwm sim txhua lub sij hawm koj muaj qhov hloov pauv tas li. Cov piv txwv ntawm lub neej tiag tiag yog: Nrhiav tam sim no noj nyob rau hnub 1,2,3… Koj nqa tsheb mus xauj. Koj tab tom tsav tsheb ntawm qhov ceev ntawm 60 km / h