Why does the conductivity of a solution ...

Why does the conductivity of a solution decrease with dilution ?

Text Solution

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Conductivity of a solution is the conductance of ions present in a unit volume of the solution. On dilution, the number of ions per unit volume decreases. Hence, the conductivity decreases.

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Statement-1: Specific conductivity of an electrolytic solution decreases with dilution whereas molar conductivity. Statement-2: Specific conductivity is the conductance of a specific amount of the electrolyte whereas molar conductivity is for 1 mole of the electrolyte.

Statement-1 is True, statement-2 is true, statement-2 is a correct explanation of statement-1

Statement-1 is true, statement-2 is true, statement-2 is not a correct explanation of statement-1.

Statement-1 is true, statemet-2 is false

Statement-1 is false, statement-2 is true

A: Molar conductivity of solution increase with dilution for weak electrolyte. R: Degree of ionization increases with dilution.

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)

If Assertion is true statement but Reason is false, then mark (3)

If both Assertion and Reason are false statements then mark (4)

Which of the following decreases with dilution ?

Conductance

Specific conductance

Cell constant

None of these.