MHT CET202121 Sep 2021Morning ShiftChemistryElectrochemistryActual
Which among the following statements is true for conductivity?
Options
- AIt is inversely proportional to resistivity.
- BIt is inversely proportional to molar conductivity.
- CIt is directly proportional to resistivity.
- DIt is directly proportional to resistance.
Correct answer
A. It is inversely proportional to resistivity.
Step-by-step solution
Specific conductance/ Conductivity (k): - It is defined as the reciprocal of specific resistance, or resistivity, k = 1 aligned & R = A & 1 = 1 R A & k = G G ^* aligned Specific conductance = Conductance Cell constant Hence specific conductivity of a solution is defined as the conductance offered by 1 ~cm ^3 of electrolytic solution. Unit of k is ohm ⁻¹ ~cm ⁻¹