NTA Abhyas NEET2020ChemistryElectrochemistryPractice
The resistance of 0.01 N NaCl solution at 25 ° C is 200 ohm. Cell constant of the conductivity cell is unity. The equivalent conductivity of the solution is
Options
- A500 o h m - 1 c m 2 e q - 1
- B5 o h m - 1 c m 2 e q - 1
- C250 o h m - 1 c m 2 e q - 1
- DNone
Correct answer
A. 500 o h m - 1 c m 2 e q - 1
Step-by-step solution
K = 1 R × cell constant Here K = specific conductance = 1 200 × 1 = 5 × 1 0 - 3 o h m - 1 c m - 1 λ v = K × V N = 5 × 1 0 - 3 × 100 × 1000 500 o h m - 1 c m 2 e q - 1