1.

Indicate the correct statements :

Answer»

Conductivity cells have cell constant values Independent of the solution filled into the cell
DC (DIRECT current) is not used for MEASURING the RESISTANCE of a solution.
Kohlrausch law is valid both for STRONG and weak electrolytes.
The k decreases but `lambda_M` and `lambda_E` increase on dilution.

Solution :cell constant =`l/A`
`K=Gsigma " " lambda_(M)=(1000K)/M,lambda_(N)=(1000K)/N`
On dilution `Gdarr K darr Mdarr Ndarr lambda_Muarr, lambda_N uarr`


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