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(D) Step $1$: Equivalent conductance $(\Lambda_{eq})$ is defined as the conductance of all ions produced by one gram equivalent of an electrolyte in a

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Degree of ionisation of the electrolyte

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(D) Step $1$: Equivalent conductance $(\Lambda_{eq})$ is defined as the conductance of all ions produced by one gram equivalent of an electrolyte in a given volume of solution.Step $2$: Upon dilution, the volume of the solution increases. For strong electrolytes, this reduces inter-ionic attractions, allowing ions to move more freely.Step $3$: For weak electrolytes, dilution significantly increases the degree of dissociation $(\alpha)$ according to Ostwald's dilution law, leading to a greater number of ions.Step $4$: Since both factors contribute to higher conductivity per equivalent, the increase in the degree of ionisation (for weak electrolytes) is the most significant factor explaining the observed increase in equivalent conductance.

The increase in equivalent conductance of an electrolyte solution with dilution is primarily due to the increase in:

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