What arc
specific conductance and molar conductance ? Explain.
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Molar conductance. Molar conductance. The molar conductance is defined as the conductance of all the ions produced by ionization of 1 g mole of an electrolyte when present in V mL of solution.
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Conductance is the measure of the tendency of a material to facilitate the flow of electricity (electrons) through it.
Specific conductance, also known as conductivity, is defined as the conductance of a an ionic solution of known concentration, enclosed in a cell with electrodes of unit area (A=1 m
2
) and separated by unit length (l=1 m). It has a unit of Sm
−1
.
Specific conductance, κ= conductance (G)*cell constant (l/A)
Specific conductance = Conductance × cell constant
Molar conductance: It is defined as the conductance due to 1 mol of the electrolyte present in volume V of the solution. For electrolyte concentration =c M
Molar conductivity, Λ
m
=
c
κ
It has a unit of Sm
2
mol
−1
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