qis qis txo lub zog ntawm cov molecules, yog li txo tus nqi diffusion. Solvent density: Raws li qhov ceev ntawm cov kuab tshuaj nce, tus nqi diffusion txo. Cov molecules qeeb vim tias lawv muaj lub sijhawm nyuaj dua los ntawm qhov nruab nrab denser.
Yuav ua li cas cuam tshuam tus nqi diffusion?
Qhov sib txawv ntawm qhov sib txawv ntau dua, qhov nrawm dua. Qhov kub siab dua, lub zog kinetic ntau dua cov khoom yuav muaj, yog li lawv yuav txav thiab sib tov sai dua. Qhov loj dua qhov chaw saum npoo, qhov nrawm ntawm qhov sib txawv.
4 yam uas cuam tshuam rau tus nqi diffusion yog dab tsi?
Ntau yam txiav txim siab tus nqi diffusion ntawm cov kuab tshuaj suav nrog qhov loj ntawm cov kua dej, qhov kub thiab txias ntawm ib puag ncig, hnyav hnyav, concentration, thiab solubility.
Qhov loj npaum li cas cuam tshuam tus nqi ntawm kev sib kis?
Kev piav qhia: Thaum lub xovtooj loj zuj zus, lub ntim nrawm dua li thaj chaw saum npoo, vim tias ntim yog cubed qhov chaw saum npoo yog squared. Thaum muaj qhov ntim ntau dua thiab thaj chaw tsawg dua, qhov kev nthuav dav yuav siv sijhawm ntev dua thiab tsis muaj txiaj ntsig.
Dab tsi yog qhov diffusion?
Tus nqi ntawm diffusion, dn / dt, yog qhov kev hloov pauv ntawm tus naj npawb ntawm diffusing molecules nyob rau hauv lub cell dhau sij hawmTxij li thaum lub net txav ntawm diffusing molecules nyob ntawm qhov concentration gradient, tus nqi ntawm diffusion yog ncaj qha proportional rau qhov concentration gradient (dC / dx) hla daim nyias nyias.
