Video: Puas yog pob zeb diamond thiab graphite ua los ntawm tib lub caij?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Pob zeb diamond thiab thiab graphite yog chemically ib yam , ob leeg ua up ntawm keeb carbon, txawm li cas los xij, lawv muaj tag nrho txawv atomic thiab crystal moj khaum. Pob zeb diamond atoms muaj ib tug nruj 3 seem qauv nrog txhua atom ua tib zoo thauj khoom nrog ib leeg thiab txuas nrog 4 lwm carbon atoms.
Tom qab ntawd, dab tsi ua graphite thiab pob zeb diamond muaj sib xws?
Ob leeg graphite thiab pob zeb diamond yog tsim los ntawm cov pa roj carbon ntshiab. Cov tshuaj muaj pes tsawg leeg ntawm ob yog tib yam nkaus. Qhov no ua rau graphite thiab pob zeb diamond allotropes ntawm carbon nrog rau amorphous, uas yog feem ntau hu ua soot los yog carbon dub. Qhov txawv nyob rau hauv yuav ua li cas tag nrho cov carbon atoms dlhos thiab txuas rau ib leeg.
Ib yam li ntawd, pob zeb diamond ntawm cov nplhaib thiab graphite hauv koj cov cwj mem zoo li cas? Pob zeb diamond ( tus khoom hauv kab tshoob rings) thiab graphite ( tus khoom hauv xaum ) yog ob qho tib si crystalline cov ntaub ntawv ntawm cov pa roj carbon ntshiab. Cov tsuas yog qhov txawv tus txoj kev tus carbon atoms yog npaj thiab sib koom ua ke hauv tus crystalline lattice.
Hais txog qhov no, peb puas tuaj yeem hloov graphite rau hauv pob zeb diamond?
Graphite thiab pob zeb diamond yog ob hom tshuaj tib yam, carbon. Ib txoj kev mus tig graphite rau hauv pob zeb diamond yog los ntawm kev siv lub siab. Txawm li cas los xij, txij li graphite yog daim ntawv ruaj khov tshaj plaws ntawm cov pa roj carbon monoxide nyob rau hauv ib txwm muaj, nws yuav siv li ntawm 150, 000 npaug ntawm qhov cua siab ntawm lub ntiaj teb saum npoo. ua yog li ntawd.
Yuav ua li cas graphite thiab pob zeb diamond sib txawv yog tias lawv ob leeg muaj cov pa roj carbon ntshiab?
Graphite thiab pob zeb diamond yog txawv vim lawv muaj txawv cov qauv. Txawm li cas los xij carbon atom hauv Pob zeb diamond muaj 4 covalent bonds nrog rau lwm yam Cov pa roj carbon , ua rau nws tsis tshua muaj zog thiab nyuaj. Ntawm qhov tod tes, txhua tus carbon hauv graphite ua ke rau peb carbons , thiab yog li ntawd graphite yog tsim nyob rau hauv txheej.
Pom zoo:
Yuav ua li cas koj ua pob zeb diamond los ntawm graphite?
Ib txoj hauv kev los tig graphite rau hauv pob zeb diamond yog los ntawm kev siv lub siab. Txawm li cas los xij, txij li graphite yog daim ntawv ruaj khov tshaj plaws ntawm cov pa roj carbon monoxide nyob rau hauv ib txwm muaj, nws yuav siv li 150,000 npaug ntawm huab cua siab ntawm lub ntiaj teb saum npoo los ua li ntawd. Tam sim no, lwm txoj hauv kev uas ua haujlwm ntawm nanoscale yog nyob rau hauv tuav
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