Cov khoom ntawm colloids nyob qhov twg?
Cov khoom ntawm colloids nyob qhov twg?

Video: Cov khoom ntawm colloids nyob qhov twg?

Video: Cov khoom ntawm colloids nyob qhov twg?
Video: : tsam lwm hnub koj tsis xaiv kuv : pobtsuas xyooj : nkauj tshiab 2022 2024, Lub peb hlis ntuj
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Kev ruaj ntseg: Colloids yog txheeb ze nyob ruaj khov. Cov khoom ntawm cov theem dispersed yog nyob rau hauv ib lub xeev ntawm nruam motion thiab nyob twj ywm raug tshem tawm nyob rau hauv cov tshuaj. Filterability: Colloids xav tau cov lim tshwj xeeb hu ua ultrafilters rau kev pom.

Colloids tuaj yeem pom qhov twg?

Ob hom kab mob colloidal muaj nyob hauv cog thiab tsiaj cov kua dej. Cov molecules ntawm lub koom haum colloids muaj ib tug hydrocarbon saw nrog ib tug hydrophilic "lub taub hau" pawg thiab ib tug hydrophobic "tail" pawg. Thaum yaj hauv dej cov molecules tsim pawg hu ua micelles.

3 yam khoom ntawm colloid yog dab tsi?

Expert Answer:

  • Cov khoom ntawm colloids yog:
  • (i) Lawv yog cov sib xyaw ua ke.
  • (ii) Qhov loj ntawm cov khoom ntawm colloids yog qhov me me dhau los ntawm qhov muag liab qab.
  • (iii) Lawv tawg lub teeb hla lawv ua kom pom txoj hauv kev.

Cov khoom ntawm Colloids piv txwv yog dab tsi?

Txoj Khoom ntawm Colloids

Lawv particle loj nyob nruab nrab ntawm 1-1000 nanometers Nws pom cov nyhuv tyndall. Nws txhais tau tias nws tawg lub teeb ntawm lub teeb thiab qhia nws txoj hauv kev los ntawm nws tus kheej. Lawv tsis nyob twj ywm thaum sab laug tsis muaj kev cuam tshuam rau qee lub sijhawm nws txhais tau tias cov tshuaj colloidal ruaj khov heev.

Cov piv txwv colloids yog dab tsi?

Lub ntsiab lus ntawm ib qho colloid yog kev sib xyaw ntawm cov molecules sib xyaw los ntawm lwm yam khoom uas yuav tsis tawm los yog koom nrog lwm yam khoom. Mayonnaise thiab ntshav yog ob qho piv txwv ntawm colloids.

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