Define conductivity, cell constant and molar conductivity

Resistance of a conductivity cell filled with 0.1M KCl solution is 100 Ω. If the resistance of the same cell when filled with 0.02 M KCl solution is 520 Ω, calculate the conductivity and molar conductivity of 0.02 M KCl solution. The conductivity of 0.1 M KCl solution is 1.29 S .

Conductivity: 
Conductivity is a measure of a material's ability to conduct electric current. It is the reciprocal of resistance and is typically denoted by the symbol σ (sigma). Conductivity is influenced by factors such as the concentration of ions in solution and temperature.

Cell Constant:
The cell constant (denoted by the symbol κ) is a parameter specific to a particular conductivity cell. It is the ratio of the distance between the electrodes to the area of the electrodes. The cell constant is crucial in converting measured conductance into actual conductivity values.

Molar Conductivity:
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