Video: Puas yog pob zeb ua homogeneous lossis heterogeneous sib xyaw?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Pob zeb yog a heterogeneous (composite) cov khoom uas muaj cov cement, dej, nplua aggregates thiab coarse aggregates. Ib qho khoom siv tau hais tias yog homogeneous thaum nws cov khoom yog tib yam nyob rau hauv tag nrho cov lus qhia. Txwv tsis pub nws yog a heterogeneous khoom. Cement tuaj yeem hu ua a homogeneous khoom.
Ntawm no, cov cement yog homogeneous lossis heterogeneous sib xyaw?
Cement yog ib yam khoom homogeneous sib tov ntawm calcium compounds. Sib tov nrog xuab zeb, gravel thiab dej, nws dhau los ua pob zeb, yog ib qho ntawm cov khoom siv tseem ceeb tshaj plaws hauv lub ntiaj teb. Muaj ntau cov alloys homogeneous sib tov ntawm cov hlau, los yog cov hlau thiab cov khoom tsis yog hlau.
Tsis tas li ntawd, qhov txawv ntawm homogeneous thiab heterogeneous yog dab tsi? A homogeneous sib tov muaj tib yam zoo li thiab muaj pes tsawg leeg thoob plaws. Ntau homogeneous kev sib tov yog feem ntau hu ua kev daws teeb meem. A heterogeneous sib tov muaj cov khoom sib txawv los yog cov theem. Cov kev daws teeb meem muaj qhov me me ntawm atoms lossis molecules - me me dhau los pom.
Kuj nug, hom kev sib xyaw ua ke yog dab tsi?
Pob zeb yog sib tov ntawm txiv qaub (CaO), cement, dej (H2O), xuab zeb, thiab lwm yam pob zeb hauv av thiab cov khib nyiab. Tag nrho cov khoom xyaw no sib tov ua ke.
Dab tsi yog homogeneous sib tov?
A homogeneous sib tov yog ib yam khoom, kua, los yog gaseous sib tov uas muaj tib proportions ntawm nws cov Cheebtsam nyob rau hauv ib qho qauv muab. Ib qho piv txwv ntawm a homogeneous sib tov yog cua. Nyob rau hauv lub cev chemistry thiab cov ntaub ntawv science no hais txog cov khoom thiab sib tov uas yog nyob rau hauv ib theem.
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