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Obtain a relation between conductivity (K) and molarconductivity (^^_(m)). |
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Answer» Solution : CONDUCTIVITY or specific conductance (K) is the conductanceof 1 `cm^(3)`of the solution in C.G.S. units, while molar conductivity is theconductance of a solution containing one MOLE of an electrolyte. Consider C molar solution i.,E. C moles of an electrolytepresentin 1 literor `1000 cm^(3)`ofthe solution . `because`C moles of an electrolyte are present in `1000cm^(3)` solution. `therefore` 1 MOLEOF an electrolyteis presentin`(1000)/(c) cm^(3)`solution . Now, `because`Conductance of `1 cm^(3)`of thissolution is k . `therefore` Conductanceof `(1000)/(c) cm^(3)` of thesesolutionis `(k XX 1000)/(C)` Thisrepresentmolarconductivty `^^_(m)` `therefore ^^_(m) = (k xx 100)/(C) Omega^(-1) cm^(2)mol^(-1)` ( in C.G.Sunits). |
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