Sponsor Area

Electrochemistry

Question
CBSEENCH12005948

Define molar conductivity of an electrolytic solution. Mention the effect of temperature on molar conductivity.

Solution
Molar conductivity is defined as the electrolytic conductivity power of all the ions furnished by 1 mol of the electrolyte at a given concentration in solution. It is given as

Λm = kCm

where Am = Molar conductivity.
k = Specific conductivity. Cm = Concentration in molar per litre.

Effect of temperature on molar conductivity. The speed of movement of ions increases with an increase in temperature. Therefore, molar conductivity increases with temperature.