Dab tsi ntawm colloid yog roj hmab?
Dab tsi ntawm colloid yog roj hmab?

Video: Dab tsi ntawm colloid yog roj hmab?

Video: Dab tsi ntawm colloid yog roj hmab?
Video: TXHOB TSO VAJTSWV TSEG || Xf Tshaj Sawm Huj || Lus Qhuab qhia 2020 2024, Kaum ib hlis
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Roj hmab kev lag luam: Latex yog ib colloidal kev daws ntawm negatively them roj hmab cov khoom. Los ntawm latex, roj hmab tuaj yeem tau los ntawm coagulation.

Ib yam li ntawd, roj hmab puas yog colloid?

Cov kua mis uas oozes tawm ntawm lub roj hmab tsob ntoo, hu ua "latex", yog a colloid (los yog sol) ib yam li mis nyuj. Nws muaj microscopic roj hmab particles faib nyob rau hauv dej nruab nrab. Ntuj roj hmab yog solidified (coagulated) kua latex.

Qhov thib ob, hom colloids yog dab tsi? Kev faib tawm Colloids Cov hom colloids muaj xws li sol, emulsion, ua npuas ncauj, thiab aerosol. Sol yog a colloidal suspension nrog cov khoom siv hauv cov kua. Ua npuas ncauj yog tsim thaum muaj ntau cov pa hauv cov kua los yog khoom. Aerosol muaj cov khoom me me ntawm cov kua lossis cov khoom tawg hauv cov roj.

Kuj nug, hom colloid yog npuas roj hmab?

Khoom ua npuas ncauj : Cov khoom ua npuas ncauj yog a colloid nyob rau hauv uas ib tug gas yog dispersed nyob rau hauv ib tug khoom nruab nrab. Piv txwv. Rwb thaiv tsev ua npuas ncauj , ua npuas ncauj roj hmab thiab Sponge. Gel: Cov gel yog ib qho khoom siv semi-solid colloid nyob rau hauv uas muaj ib tug nruam network ntawm cov khoom uas dispersed nyob rau hauv ib tug kua.

Dab tsi yog 5 piv txwv ntawm colloids?

Hom colloids Colloids muaj nyob rau hauv lub neej txhua hnub. Qee qhov piv txwv suav nrog whipped cream, mayonnaise, mis nyuj , butter , gelatin, jelly, av nkos dej , plaster, xim iav, thiab ntawv. Txhua colloid muaj ob ntu: colloidal hais thiab qhov nruab nrab dispersing.

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