Chemistry - Electrochemistry Question with Solution | TestHub

When an electrolyte solution is diluted, the volume of the solution increases, which leads to a decrease in the number of ions per unit volume. As a result, the specific conductivity ($k$) decreases.

Molar conductivity ($\Lambda$) is the conductance of the volume of solution containing one mole of the electrolyte. It is given by $\Lambda =k\times V$. Upon dilution, the increase in volume ($V$) more than compensates for the decrease in specific conductivity ($k$). Additionally, for weak electrolytes, the degree of dissociation increases, and for strong electrolytes, interionic attractions decrease, leading to higher ionic mobility. Thus, molar conductivity ($\Lambda$) increases.

Therefore, $\Lambda$ increases and $k$ decreases.

Answer: $\Lambda$ increases and $k$ decreases