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प्रश्न
Which of the following solutions of KCl will have the highest value of molar conductivity?
पर्याय
0.01 M
1 M
0.5 M
0.1 M
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उत्तर
0.01 M
Explanation:
The relationship between specific conductivity and molar conductivity is:
Molar conductivity, ∧m = `(κ xx 1000)/"c"` cm3L–1
From the above relation, ∧m is inversely proportional to the molarity of the solution.
Therefore, the lesser the value of molarity, the more will be the molar conductivity.
संबंधित प्रश्न
Define “Molar conductivity”.
The conductivity of 0.20 mol L−1 solution of KCl is 2.48 × 10−2 S cm−1. Calculate its molar conductivity and degree of dissociation (α). Given λ0 (K+) = 73.5 S cm2 mol−1 and λ0 (C1−) = 76.5 S cm2 mol−1.
Write mathematical expression of molar conductivity of the given solution at infinite dilution.
The S.I. unit of cell constant for conductivity cell is __________.
Molar conductivity of ionic solution depends on:
(i) temperature.
(ii) distance between electrodes.
(iii) concentration of electrolytes in solution.
(iv) surface area of electrodes.
Solutions of two electrolytes ‘A’ and ‘B’ are diluted. The Λm of ‘B’ increases 1.5 times while that of A increases 25 times. Which of the two is a strong electrolyte? Justify your answer.
Why on dilution the m Λm of \[\ce{CH3COOH}\] increases very fast, while that of \[\ce{CH3COONa}\] increases gradually?
Assertion: `"E"_("Ag"^+ //"Ag")` increases with increase in concentration of Ag+ ions.
Reason: `"E"_("Ag"^+ //"Ag")` has a positive value.
An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to :-
Molar conductivity of substance “A” is 5.9 × 103 S/m and “B” is 1 × 10–16 S/m. Which of the two is most likely to be copper metal and why?
