Question

The one which decreases with dilution is:

• A. molar conductance
• B. conductance
• C. specific conductance
• D. equivalent conductance

Hint:

Remember the trend:

Specific conductance (downarrow) with dilution
Molar and equivalent conductance (uparrow) with dilution

Answer 1

The Correct Option is C

Step 1: Understand the effect of dilution on different conductance terms. On dilution, the number of ions per unit volume of solution decreases. Step 2: Analyze each option. Specific conductance (\(\kappa\)): It is defined as the conductance of a solution of unit volume. Since dilution reduces the number of ions per unit volume, specific conductance decreases. Molar conductance and equivalent conductance: These increase with dilution because ions get more freedom to move, increasing their mobility. Conductance: It depends on both concentration and cell dimensions and is not a fundamental property of the solution alone. Step 3: Final conclusion Only specific conductance decreases with dilution.