CUET · CHEMISTRY · PYQ PAPER 2023
"Answer the question on basis of passage given below:
\(G = \frac{\kappa A}{l}\) = k (both \(A\) and \(l\) are unity in their appropriate units in m or cm)
Molar conductivity of a solution at a given concentration is the conductance of the volume \(V\) of solution containing one mole of electrolyte kept between two electrodes with area of cross section \(A\) and distance of unit length (\(l\)). Therefore,
\(\Lambda_m = \frac{\kappa A}{l}\)
Since \(l = 1\) and \(A = V\) (volume containing 1 mole of electrolyte),
\(\Lambda_m = \kappa V\)
What does \(\kappa\) represent in the paragraph?"
- A Rate constant
- B Conductivity
- C Equilibrium constant
- D Conductance
Answer & Solution
Correct Answer
(B) Conductivity
Step-by-step Solution
Detailed explanation
The passage states \(G = \frac{\kappa A}{l}\) and \(\Lambda_m = \frac{\kappa A}{l}\). In these formulas, \(G\) is conductance, \(\Lambda_m\) is molar conductivity, \(A\) is area, and \(l\) is length. The term \(\kappa\) represents conductivity.
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