Nyob rau hauv qhov kev nthuav qhia no koj kawm txog cov kua sib txawv li cas muaj cov viscosities sib txawv. Qee cov kua nplaum ntau dua li lwm tus Qhov no txhais tau tias lawv tuab dua thiab ntws yooj yim dua. Hais txog cov khoom, viscosity yog yooj yim npaum li cas cov khoom ntawm cov kua txav mus rau ib leeg.
Puas cov kua dej puas muaj viscosities?
Viscosity, cov kua ua tsis kam ntws, kuj yog cov yam ntxwv ntawm cov kua. Cov kua viscosity nyob ntawm qhov loj thiab cov duab ntawm nws cov khoom thiab cov kev nyiam ntawm cov khoom. Cov kua dej uas muaj viscosity siab, xws li zib ntab, ntws maj mam.
Vim li cas qee cov kua muaj viscosities txawv?
Vim li cas qee cov kua dej khov ntau dua li lwm tus? Loj, pob zeb molecules tsim kev sib txhuam ntau dua li me, du molecules Viscosity yog txiav txim siab nyob rau hauv loj los ntawm cov duab ntawm cov molecules hauv cov kua.… Cov kua yuav ntws los ntawm tus nqi qeeb dua li cov kua uas ua los ntawm cov molecules me me uas muaj qhov smoother.
dej puas muaj viscosities sib txawv?
Dej viscosity txawv nyob ntawm nws qhov kub thiab txias, thiab qhov kub siab dua, cov dej tsis khov. Dej viscosity ntawm, cia peb hais, 80 ° C yog 0.354 millipascals-thib ob.
Cov kua dej uas muaj viscosities sib txawv muaj tus nqi sib txawv?
Qhov kev tiv thaiv kom ntws tawm yog ncaj qha proportional rau lub viscosity η. Yog li, tus nqi ntws yog inversely proportional to the viscosity.
