CBSE Class 12 · 2010 · All India · Redox Reactions and ElectrochemistryShort Answer

WhatsApp Email

Express the relation among the cell constant, the resistance of the solution in the cell and the conductivity of the solution. How is the conductivity of a solution related to its molar conductivity?

Answer: κ = cell constant / R; Λ_m = κ×1000/C.

Solution

Conductivity, resistance and cell constant:

κ = \frac{1}{R} \times \frac{l}{A} = \frac{cell constant}{R}

Conductivity and molar conductivity:

Λ_{m} = \frac{κ \times 1000}{C}

with

κ

in S cm

^{- 1}

and

C

in mol L

^{- 1}

CBSE Class 12 Board · 2010 · All India · Subjective

Practise more: all CBSE board PYQs on Redox Reactions and Electrochemistry →

More board questions on Redox Reactions and Electrochemistry

Which of the following cells is used in the Apollo space programme?
CBSE 2024View solution →
Dilution affects both conductivity as well as molar conductivity. The effect of dilution on both is as follows:
CBSE 2024View solution →
State the following:
(a) Kohlrausch law of independent migration of ions
(b) Faraday's first law of electrolysis
CBSE 2024View solution →
The resistance of a conductivity cell filled with 0.2 mol L $^{- 1}$ KCl solution is 200 Ω. If the resistance of the same cell when filled with 0.05 mol L $^{- 1}$ KCl solution is 620 Ω, calculate the conductivity and molar conductivity of the 0.05 mol L $^{- 1}$ KCl solution. The cond …
CBSE 2024View solution →
Calculate the emf of the following cell:
$Ni (s) + 2A g^{+} (0.01 M) ⟶ N i^{2 +} (0.1 M) + 2Ag (s)$

Given: $E_{ce l l}^{\circ} = 1.05$ V, log 10 = 1.
CBSE 2024View solution →
Which one of the following cells was used in the Apollo space programme?
CBSE 2023View solution →