Dab tsi yog qhov sib xyaw colloid?
Dab tsi yog qhov sib xyaw colloid?

Video: Dab tsi yog qhov sib xyaw colloid?

Video: Dab tsi yog qhov sib xyaw colloid?
Video: TXHOB TSO VAJTSWV TSEG || Xf Tshaj Sawm Huj || Lus Qhuab qhia 2020 2024, Kaum ib hlis
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Hauv chemistry, a colloid yog a sib tov nyob rau hauv uas ib yam khoom ntawm microscopically dispersed insoluble los yog soluble hais raug tshem tawm thoob plaws lwm yam khoom.

Xav txog qhov no, dab tsi yog qhov kev daws teeb meem colloid?

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.

Qhov thib ob, puas yog ib qho colloid sib xyaw ua ke? Colloids ( heterogeneous ) Ib qho piv txwv ntawm a colloid yog mis. Mis yog ib sib tov ntawm cov kua butterfat globules dispersed thiab tshem tawm hauv dej. Colloids feem ntau xav txog heterogeneous sib tov , tab sis muaj qee qhov zoo ntawm homogeneous sib tov ib yam nkaus.

Yog li ntawd, dab tsi yog colloid yooj yim txhais?

Txhais : A colloid yog ib yam khoom microscopically dispersed tusyees thoob plaws lwm yam khoom. Lub dispersed-theem hais muaj ib txoj kab uas hla ntawm li 5 thiab 200 nanometers. Piv txwv li: Mis yog ib qho emulsion, uas yog a colloid uas ob tog yog kua.

Yuav ua li cas yog ib co piv txwv ntawm ib tug colloid?

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

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