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1、ectrochemistry(3)JXuanChengXiamenUniversitycccElectrolyticConductivityTheelectriccurrentT志必(16.46)*ETheelectriccurrentdensity:奶7=一(16.47)Theconductivityx8=KE16.49)+K=五()Thereciprocalofconductivity(resistivity)p1匕p(16.50)*2“nnizmop20000009090000ElectrolyticConductivityTheresistance仁R=L4(16.46)+(16.54
2、)E02R上Ohm区TheconductanceGG=L15S=1Q14Siemens/mho电字率的家义“zmp7990MolarConductivityTheconductivityofasolutiondependsonthenumberofionspresentThemolarconductivityxl,人口(16.58)*人COfeelectrogytesstofchiometricmzolzrcozceztytztiog摩尔电导率的定义e.cenusMolarConductivity一VS.CAs=不GH.SO,StrongelectrolytesHSO,KOH(16.58)*F
3、ullyionizedinsolution:ionickcl“KOHsolids,strongacidsandbasesTheconcentrationofionsisproportianaltotheconcentrationofelectrolyteadded2CHCOOHWeakelectrolytes“MaSONeutralelectrolytes(51015c/(moldm)Conductivityvs.concentration80z2SO460KOH示KCI540忠心20MuSO4屯目OC时0L一051013c/moldma)ConductivityVs.concentratio
4、n侦林MolarConduCtivityInanextensiveseriesofmeasurements蒙during19thcenturyFriedrichKohlrausch。ThelimitingmolarconductivityAtlowconcentrations,=Ar-Kyc|Theinfinite-dilutemolarconductivity1二A+=力+V无A(Sentmo)Theinfinite-dilutemolarconductivityofthecationsandanionsCHCOonLCatyoftfieindeperidenttI别7atio0fiofs1闸志埕Vegmokdm005101.5aco/mof-dn厦门大学化学化工学院摩尔电导率与浓度的关系所以,当浓度降低时,粒子之间相互作用减弘,于溶液中导电物质的量已给定,都为1mol,Ee负离子迁移速率加快,溶液的摩尔电导率必定升高。但不同的电解质,摩尔电导率随浓度降低而升高的程度也大不相同。“。命命命命命唐命命命明明一cmol*dm)00010.005001“0.020.0510
