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प्रश्न
The cell constant of a conductivity cell ______.
पर्याय
changes with change of electrolyte.
changes with change of concentration of electrolyte.
changes with temperature of electrolyte.
remains constant for a cell.
उत्तर
The cell constant of a conductivity cell remains constant for a cell.
Explanation:
The cell constant is described as the ratio of the length of the object and the area of cross-section. It can be written as follows
G = `l/A`
As l and A remains constant for an object it can be inferred that cell constant for a conductivity cell remains constant for a cell.
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संबंधित प्रश्न
The conductivity of 0.20 M solution of \[\ce{KCl}\] at 298 K is 0.0248 S cm−1. Calculate its molar conductivity.
Define conductivity for the solution of an electrolyte.
Give reasons On the basis of E° values, O2 gas should be liberated at anode but it is Cl2 gas which is liberated in the electrolysis of aqueous NaCl.
Give reasons Conductivity of CH3COOH decreases on dilution.
Conductivity of an electrolytic solution depends on:
(i) nature of electrolyte.
(ii) concentration of electrolyte.
(iii) power of AC source.
(iv) distance between the electrodes.
ConductivityK, is equal to:
(i) `1/R l/A`
(ii) `G^∗/R`
(iii) Λm
(iv) `l/A`
In an aqueous solution how does specific conductivity of electrolytes change with addition of water?
Assertion: Conductivity of all electrolytes decreases on dilution.
Reason: On dilution number of ions per unit volume decreases.
Assertion: For measuring resistance of an ionic solution an AC source is used.
Reason: Concentration of ionic solution will change if DC source is used.
The decreasing order of electrical conductivity of the following aqueous solutions is:
- 0.1 M Formic acid,
- 0.1 M Acetic acid,
- 0.1 M Benzoic acid.
