Video: Dab tsi yog disperse systems?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub ntsiab txhais ntawm a disperse system yog ob feem qhov system ua los ntawm microscopic hais thiab nruab nrab uas lawv raug tshem tawm. Ib qho piv txwv ntawm a disperse system yog ua npuas ncauj xws li shaving cream.
Tsis tas li ntawd, ob hom dispersions yog dab tsi?
Ib txoj hauv kev ntawm kev faib cov colloids yog nyob ntawm theem ntawm cov khoom sib cais thiab theem twg nws tau tawg mus rau hauv. hom ntawm colloids muaj xws li sol, emulsion, ua npuas ncauj, thiab aerosol. Sol yog ib qho kev ncua colloidal nrog cov khoom hauv cov kua. Emulsion yog nruab nrab ob kua.
dispersion nyob rau hauv lub tsev muag tshuaj yog dab tsi? Pharmaceutical dispersions yog systems uas ib yam khoom yog cais tawm nyob rau hauv lwm yam khoom. Cov ntsiab lus siv los piav qhia kev tawg Cheebtsam suav nrog cov theem sab hauv lossis tsis txuas ntxiv los piav txog qhov cais tawm theem tivthaiv (cov hais) thiab sab nraud los yog txuas mus ntxiv los piav txog cov kev tawg nruab nrab.
Ib yam li ntawd, tej zaum koj yuav nug, koj txhais li cas los ntawm dispersed?
Lub adjective dispersed tau piav txog txhua yam uas kis tau mus deb. Lub hauv paus Latin ntawm cais tawm yog dispersus, lub ntsiab lus "kom tawg." Txhua yam uas tau muab faib los yog nthuav tawm ua tau tau piav raws li cais tawm , siv los ua ib qho adjective lossis verb.
Coarse dispersion yog dab tsi?
Coarse dispersions yog heterogeneous cais tawm systems, uas cais tawm theem hais yog loj tshaj 1000 nm (4 * 10-5“). Coarse dispersions yog characterized los ntawm kuj ceev sedimentation ntawm lub cais tawm theem tshwm sim los ntawm lub ntiajteb txawj nqus los yog lwm yam quab yuam.
Pom zoo:
Sociobiology yog dab tsi thiab dab tsi yog qhov kev thuam loj ntawm nws?
Ib feem ntawm sociobiology cuam tshuam nrog kev coj tus cwj pwm tsis zoo feem ntau. Cov neeg thuam tau hais tias daim ntawv thov ntawm sociobiology no yog ib hom kev txiav txim siab caj ces thiab nws ua tsis tau raws li qhov nyuaj ntawm tib neeg tus cwj pwm thiab qhov cuam tshuam ntawm ib puag ncig ntawm tib neeg txoj kev loj hlob
Dab tsi yog cov hlau nplaum uas ua los ntawm qhov kev npaj ntawm electrons yog dab tsi?
Electrons yog teem rau hauv plhaub thiab orbitals nyob rau hauv ib tug atom. Yog hais tias lawv sau lub orbitals kom muaj ntau spin taw tes rau hauv qab (los yog vice versa), txhua atom yuav ua zoo li ib tug me me hlau nplaum. Thaum ib daim ntawm cov hlau tsis muaj hlau nplaum (lossis lwm yam khoom siv ferromagnetic) raug rau sab nraud magnetic teb, ob yam tshwm sim
Dab tsi yog Qhov Ib Feem Cuam Tshuam ntawm cov khoom hydrogen hauv cov methane ch4 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus los ntawm Element Element Symbol Mass Percent Hydrogen H 25.132% Carbon C 74.868%
Dab tsi yog cov reagents xav tau rau PCR thiab dab tsi yog qhov ua haujlwm ntawm txhua tus?
Muaj tsib yam tshuaj reagents, lossis cov khoom xyaw, siv hauv PCR: qauv DNA, PCR primers, nucleotides, PCR tsis thiab Taq polymerase. Primers feem ntau yog siv nyob rau hauv khub, thiab DNA ntawm ob lub primers yog amplified thaum lub sij hawm PCR cov tshuaj tiv thaiv
Yuav ua li cas mangroves disperse lawv cov noob?
Mangroves yog viviparous (ua rau cov menyuam yaus), ib yam li cov tsiaj txhu feem ntau. Tsis yog tsim cov noob sown so zoo li feem ntau cov paj ntoo, mangroves disperse propagules ntawm dej nrog ntau qib ntawm vivipary los yog embryonic txoj kev loj hlob thaum lub propagule yog txuas nrog niam txiv ntoo