The unit of cell constant is

CONCEPT:

Cell Constant (G*)

• The cell constant, often denoted as G* (or K), is a proportionality factor that relates the conductance of an electrolytic solution to its conductivity.
• It is defined by the equation:

  G* = L/A

  • where L is the distance between the electrodes (cm)
  • A is the cross-sectional area of the electrodes (cm²)

EXPLANATION:

• The cell constant has units that ensure the conductivity (which has units of S cm^-1) multiplied by the cell constant gives conductance (which has units of S).
• Given the formula G* = L/A:
  • Distance (L) has units of cm
  • Area (A) has units of cm²
  • Thus, G* has units of cm^-1, as it is the ratio of a length to an area.

Therefore, the unit of cell constant is cm^-1.