Question

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Explain the molar conductivity ???​

Answer 1

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Molar conductivity of a solution at a given concentration is the conductance of volume V of a solution containing one mole of electrolyte kept between two electrodes with an area of cross-section A and distance of unit length.

Ʌm = К/c

Here,

c = concentration in moles per volume

К = specific conductivity

Ʌm = molar conductivity.

As the solution contains only one mole of electrolyte, the above equation can be modified as:

Ʌm =К V

Molar conductivity increases with decrease in concentration as the total volume, V, of a solution containing one mole of electrolyte also increases. Upon dilution, the concentration decreases. When the concentration approaches zero, the molar conductivity of the solution is known as limiting molar conductivity, Ë°m. Variation of molar conductivity with concentration is different for strong and weak electrolytes.

Answer 2

The molar conductivity of an electrolyte solution is defined as its conductivity divided by its molar concentration.