Telangana Board Solutions for Chapter: Electrochemistry and Chemical Kinetics, Exercise 3: Intext Questions

Why does the conductivity of a solution decrease with dilution? 

Suggest a way to determine the ${\wedge }_{\mathrm{m}}^0$ value of water. 

The molar conductivity of $0.025 \mathrm{m}\mathrm{o}\mathrm{l} {\mathrm{L}}^{-1}$ methanoic acid is $46.1 \mathrm{S} \mathrm{c}{\mathrm{m}}^2 \mathrm{m}\mathrm{o}{\mathrm{l}}^{-1}.$ Calculate its degree of dissociation and dissociation constant. Given ${\mathrm{\lambda }}^0\left({\mathrm{H}}^{+}\right)=349.6 \mathrm{S} \mathrm{c}{\mathrm{m}}^2 \mathrm{m}\mathrm{o}{\mathrm{l}}^{-1}$ and
 ${\mathrm{\lambda }}^0\left({\mathrm{HCOO}}^{-}\right)=54.6 \mathrm{S} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1}.$