What is ionic conductivity? On what factors does it depend?
(N/A) Definition: When electrolytes are dissolved in water,they furnish their own ions in the solution,which increases the conductivity of the solution. The conductance of electricity by ions present in the solution is called electrolytic or ionic conductance. Pure water has very low conductivity,approximately $3.5 \times 10^{-5} \ S \ m^{-1}$.
Ionic conductivity depends on the following factors:
$(i)$ The nature of the electrolyte added.
$(ii)$ The size of the ions produced and their degree of solvation.
$(iii)$ The nature of the solvent and its viscosity.
$(iv)$ The concentration of the electrolyte.
$(v)$ Temperature: It increases with an increase in temperature.
Note: The passage of direct current $(DC)$ through an ionic solution over a prolonged period can lead to a change in its composition due to electrochemical reactions.
Ionic conductivity depends on the following factors:
$(i)$ The nature of the electrolyte added.
$(ii)$ The size of the ions produced and their degree of solvation.
$(iii)$ The nature of the solvent and its viscosity.
$(iv)$ The concentration of the electrolyte.
$(v)$ Temperature: It increases with an increase in temperature.
Note: The passage of direct current $(DC)$ through an ionic solution over a prolonged period can lead to a change in its composition due to electrochemical reactions.
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