AP EAMCET20225 Jul 2022Evening ShiftChemistryElectrochemistryActual
Resistance of a conductivity cell filled with 0.1 ~mol ~L ⁻¹ NaCl is 100 ohm . If the resistance of the same cell when filled with 0.02 ~mol ~L ⁻¹ NaCl solution is 258 ohm, the conductivity of 0.02 ~mol ~L ⁻¹ NaCl solution is (Conductivity of 0.1 ~mol ~L ⁻¹ NaCl is 1.29 ~S ~m ⁻¹ )
Options
- A1.0 ~S ~m ⁻¹
- B0.2 ~S ~m ⁻¹
- C2.0 ~S ~m ⁻¹
- D0.5 ~S ~m ⁻¹
Correct answer
D. 0.5 ~S ~m ⁻¹
Step-by-step solution
aligned & R ₁=100 ; R ₁= ₁ A ; A = R ₁ ₁=1.29 100 ~cm ⁻¹ & R ₂=258 ; Now, A = R ₂ ₂ ; ₂= 100 1.29 258 = 1 2 Scm ⁻¹ aligned =0.5 Scm ⁻¹