What is the unit of specific conductance in ohm?

The unit of specific conductance is ohm⁻¹ metre⁻¹, also called mho per metre, which in SI is the same as siemens per metre (S m⁻¹).

Specific conductance is another name for conductivity, usually written as κ (kappa). It tells how well a material, often a solution, conducts electricity per unit length and per unit cross-section. It is the reciprocal of resistivity and is related to conductance and cell geometry.