Qhov sib txawv tseem ceeb ntawm qhov sib npaug ntawm cov conductance thiab molar conductance yog qhov sib npaug ntawm cov khoom siv hluav taws xob yog qhov sib npaug ntawm cov electrolyte uas muab faib los ntawm cov lej sib npaug ntawm cov electrolyte ib chav tsev ntim, whereas molar conductance yog cov conductance ntawm electrolyte faib los ntawm tus lej ntawm moles ntawm cov electrolyte.
Molar conductance yog qhov kev coj ua ntawm tag nrho cov ions uas tau muab los ntawm ib lub mole ntawm ib qho electrolyte tam sim no nyob rau hauv qhov tseeb ntim ntawm cov tshuaj. Kev sib npaug sib npaug yog qhov kev coj ua ntawm ib lub ntim ntawm cov tshuaj uas muaj ib qho hnyav hnyav ntawm cov khoom yaj thaum nws muab tso rau ntawm ob qho tib si electrodes.
Kev coj ua sib npaug yog dab tsi?
Qhov sib npaug yog qhov kev coj ua ntawm qhov ntim ntawm cov tshuaj uas muaj ib qho hnyav sib npaug ntawm cov tshuaj yaj thaum nws muab tso rau ntawm ob qho tib si electrodes. Cov electrodes tau muab tso nrog 1 cm deb ntawm lawv. Nws yog qhov loj txaus kom muaj kev daws teeb meem ntawm lawv. Nws tuaj yeem piav qhia raws li kev coj ua ntawm txhua ion uas yog tsim los ntawm 1 gram sib npaug ntawm cov khoom tshwj xeeb. Kev suav rau qhov ntsuas no yog ua raws li hauv qab no:
λ=kV
Nyob rau hauv qhov sib npaug no, λ yog qhov sib npaug conductance, k yog qhov tas li, thiab V yog qhov ntim hauv milliliters muab rau 1 gram sib npaug ntawm cov electrolyte peb siv rau qhov kev txiav txim siab no.
Molar Conductance yog dab tsi?
Molar conductance yog qhov kev coj ua ntawm tag nrho cov ions uas tau muab los ntawm ib lub mole ntawm ib qho electrolyte tam sim no nyob rau hauv qhov tseeb ntim ntawm cov tshuaj. Lo lus molar conductivity yog hais txog cov cuab yeej ntawm kev muaj cov molar conductance.
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.
Thaum xav txog kev ntsuas ntawm molar conductivity, SI unit rau kev ntsuas ntawm cov cuab yeej no yog Siemens squared ib mole. Tom qab ntawd lub unit yog muab raws li S m2 mol-1. Txawm li cas los xij, feem ntau, chav tsev rau cov cuab yeej no yog S cm2 mol-1.
Qhov txawv ntawm qhov sib npaug ntawm kev coj ua thiab molar conductance yog dab tsi?
Molar conductance yog qhov kev coj ua ntawm tag nrho cov ions uas tau muab los ntawm ib lub mole ntawm ib qho electrolyte tam sim no nyob rau hauv qhov tseeb ntim ntawm cov tshuaj. Sib npaug conductance, ntawm qhov tod tes, yog qhov conductance ntawm ib lub ntim ntawm ib qho kev daws teeb meem uas muaj ib qho hnyav hnyav ntawm cov khoom yaj thaum nws muab tso rau ntawm ob qho tib si electrodes. Qhov sib txawv tseem ceeb ntawm qhov sib npaug ntawm cov conductance thiab molar conductance yog qhov sib npaug ntawm cov khoom siv hluav taws xob yog qhov sib npaug ntawm cov electrolyte uas muab faib los ntawm tus lej ntawm qhov sib npaug ntawm cov electrolyte ib chav tsev ntim, whereas molar conductance yog cov conductance ntawm electrolyte muab faib los ntawm tus lej ntawm moles. cov electrolyte.
Cov hauv qab no qhia txog qhov sib txawv ntawm qhov sib npaug ntawm kev coj ua thiab molar conductance hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Equivalent Conductance vs Molar Conductance
Sib npaug conductance thiab molar conductance yog ob hom conductivities. Qhov sib txawv tseem ceeb ntawm qhov sib npaug ntawm cov conductance thiab molar conductance yog qhov sib npaug ntawm cov khoom siv hluav taws xob yog qhov sib npaug ntawm cov electrolyte uas muab faib los ntawm tus lej ntawm qhov sib npaug ntawm cov electrolyte ib chav tsev ntim, whereas molar conductance yog cov conductance ntawm electrolyte muab faib los ntawm tus lej ntawm moles. cov electrolyte.
