Dab tsi ua rau colloid ua colloid?
Dab tsi ua rau colloid ua colloid?

Video: Dab tsi ua rau colloid ua colloid?

Video: Dab tsi ua rau colloid ua colloid?
Video: TXHOB TSO VAJTSWV TSEG || Xf Tshaj Sawm Huj || Lus Qhuab qhia 2020 2024, Kaum ib hlis
Anonim

Hauv chemistry, a colloid yog ib qho sib xyaw uas ib yam khoom ntawm microscopically dispersed insoluble los yog soluble hais raug tshem tawm thoob plaws lwm yam khoom. Kom tsim nyog raws li ib tug colloid , qhov sib tov yuav tsum yog ib qho uas tsis khom lossis yuav siv sij hawm ntev heev los daws qhov txaus siab.

Ib yam li ntawd ib tug yuav nug, dab tsi yog ib tug colloid tov?

Colloidal daws , los yog colloidal suspensions, tsis muaj dab tsi tab sis yog ib qho sib xyaw uas cov tshuaj raug ncua tsis tu ncua hauv cov kua dej. A colloid yog ib yam khoom me me thiab me me uas kis tau zoo ib yam los ntawm lwm cov khoom. Txawm li cas los xij, a colloidal tshuaj feem ntau yog hais txog cov kua ua kua.

Tsis tas li ntawd, 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.

Yog li ntawd, dab tsi yog ib qho colloid hauv cov ntsiab lus yooj yim?

A colloid tej zaum yuav yog ib tug sib tov ntawm ib yam khoom uas yuav kis tau tusyees nyob rau hauv lwm yam khoom. Lawv yuav nyob rau hauv ob theem sib txawv los yog lub xeev ntawm teeb meem. Ib yam khoom tuaj yeem yog qhov nruab nrab dispersion, xws li dej lossis roj. Lus txhais: A colloid yog ib yam khoom microscopically dispersed tusyees thoob plaws lwm yam khoom.

Yog vim li cas mayonnaise yog ib tug colloid?

Mayonnaise yog emulsion colloid ua los ntawm polar vinegar thiab nonpolar roj emulsified los ntawm qe qe uas tiv thaiv lawv kev sib cais. Qe cuam tshuam nrog ob qho tag nrho cov polar thiab nonpolar kawg kom ruaj khov qhov sib tov.

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