Video: Dab tsi ua rau colloid ua colloid?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Hydrophilic colloid yog dab tsi?
Ib qho hydrophilic colloid, lossis hydrocolloid, txhais tau hais tias yog lub kaw lus colloid uas cov colloidparticles yog hydrophilic polymers dispersed hauv dej. Piv txwv li, agar yog reversible hydrocolloid ntawm seaweed extract; Nws tuaj yeem muaj nyob hauv gel lossis kua hauv lub xeev thiab tuaj yeem hloov pauv ntawm cov xeev nrog cua sov lossis txias
Dab tsi yog qhov sib xyaw colloid?
Nyob rau hauv chemistry, ib tug colloid yog ib tug 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
Dab tsi ntawm colloid yog roj hmab?
Kev lag luam roj hmab: Latex yog cov tshuaj colloidal ntawm cov roj hmab uas tsis zoo. Los ntawm latex, roj hmab tuaj yeem tau los ntawm coagulation
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Kev ncua thiab colloid yog dab tsi?
Zaj Lus Qhia. Kev ncua thiab colloids yog cov sib xyaw ua ke. Ib qho kev ncua yog txheeb xyuas tau vim tias nws cov khoom loj thiab tawm ntawm qhov nruab nrab dispersing vim qhov cuam tshuam ntawm lub ntiajteb txawj nqus. Lub dispersed particles ntawm ib tug colloid yog nruab nrab ntawm qhov loj ntawm cov kev daws teeb meem thiab kev ncua