Qhov sib txawv tseem ceeb ntawm kev coj ua thiab molar conductivity yog qhov kev coj ua yog qhov ntsuas ntawm lub peev xwm ntawm electrolyte los ua hluav taws xob whereas molar conductivity yog qhov conductivity ntawm electrolyte ntsuas ib chav molar concentration.
Kev coj ua ntsuas lub peev xwm ntawm electrolyte los ua hluav taws xob los ntawm nws. Hauv lwm lo lus, nws yog ib qho kev ntsuas ntau ntawm cov conduction ntawm electrolyte. Cov ionic hom nyob rau hauv cov electrolyte, piv txwv li, cations thiab anions, pab rau conductivity.
Kev coj ua yog dab tsi?
Kev coj ua yog qhov ntsuas ntawm lub peev xwm electrolyte los ua hluav taws xob los ntawm nws. Ib qho electrolyte yog ib yam khoom uas muaj peev xwm tsim tau ib qho kev daws teeb meem uas muaj peev xwm ua hluav taws xob thaum peb yaj nws hauv cov kuab tshuaj polar xws li dej. Yog li ntawd, cov electrolyte yuav tsum tsim ionic hom thaum dissolving: cations los yog zoo charged ions thiab anions los yog tsis zoo them ions.
Daim duab 1: Kev ntsuas ntsuas ntsuas
SI unit rau kev ntsuas kev ntsuas yog S / m (Siemens ib meter). Feem ntau, peb ntsuas qhov no ntawm 25 ° C kub. Txawm li cas los xij, hauv kev lag luam, peb siv qhov no feem ntau li μS / cm, raws li ib txwm siv. Peb tuaj yeem txiav txim siab qhov conductivity ntawm cov tshuaj electrolytic los ntawm kev txiav txim siab ntawm qhov kev daws teeb meem ntawm ob lub tiaj tus electrodes sib cais los ntawm kev ncua deb. Ntawm no, peb yuav tsum siv qhov hloov pauv tam sim no kom tsis txhob muaj electrolysis. Tsis tas li ntawd, peb tuaj yeem ntsuas qhov kev tiv thaiv no siv lub ntsuas ntsuas hluav taws xob.
Molar conductivity yog dab tsi?
Molar conductivity yog cov conductivity ntawm cov tshuaj electrolytic ntsuas ib chav molar concentration ntawm cov tshuaj. Peb tuaj yeem txiav txim siab qhov no raws li kev coj ua ntawm cov tshuaj electrolytic faib los ntawm molar concentration ntawm electrolyte. Yog li, peb tuaj yeem muab cov molar conductivity hauv qhov sib npaug hauv qab no:
Molar conductivity=k/c
k yog ntsuas ntsuas ntawm cov tshuaj electrolytic thiab c yog qhov concentration ntawm cov tshuaj electrolytic.
Dab tsi yog qhov txawv ntawm Conductivity thiab Molar Conductivity?
Kev coj ua yog qhov ntsuas ntawm lub peev xwm ntawm electrolyte los ua hluav taws xob los ntawm nws thaum molar conductivity yog cov conductivity ntawm cov tshuaj electrolytic ntsuas ib chav molar concentration ntawm cov tshuaj. Yog li ntawd, qhov no yog qhov sib txawv ntawm cov conductivity thiab molar conductivity. Ntawm no, peb tsis xav txog cov molar concentration ntawm cov tshuaj electrolytic thaum txiav txim siab conductivity. Txawm li cas los xij, peb yuav tsum xav txog qhov concentration ntawm cov tshuaj electrolytic thaum txiav txim siab cov molar conductivity.
Cov duab hauv qab no qhia cov ntsiab lus ntxiv ntawm qhov sib txawv ntawm cov conductivity thiab molar conductivity.
Summary – Conductivity vs Molar Conductivity
Molar conductivity yog ib qho derivative ntawm conductivity uas suav nrog cov molar concentration ntawm cov tshuaj electrolytic uas peb ntsuas qhov conductivity. Nyob rau hauv luv luv, conductivity yog ntsuas ntawm lub peev xwm ntawm ib tug electrolyte ua hluav taws xob. Molar conductivity, ntawm qhov tod tes, yog conductivity ntawm electrolyte ntsuas ib chav molar concentration. Yog li ntawd, qhov no yog qhov sib txawv tseem ceeb ntawm conductivity thiab molar conductivity.
