MHT CET Medical202622 April 2026Evening ShiftChemistryElectrochemistryActual
What is the cell constant of a cell containing a solution of resistance 90 Ohm with conductivity 2 10⁻³ Ohm ⁻¹ cm ⁻¹ ?
Options
- A0.50 cm ⁻¹
- B0.18 cm ⁻¹
- C0.029 cm ⁻¹
- D0.70 cm ⁻¹
Correct answer
B. 0.18 cm ⁻¹
Step-by-step solution
The cell constant G^* is related to conductivity and resistance R by the formula: G^* = R Given: = 2 10⁻³ ⁻¹ cm ⁻¹ R = 90 Substituting the values: G^* = (2 10⁻³) 90 G^* = 180 10⁻³ cm ⁻¹ G^* = 0.18 cm ⁻¹ Answer: 0.18 cm ⁻¹