English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Define conductivity for the solution of an electrolyte. - Chemistry

Advertisements
Advertisements

Question

Define conductivity for the solution of an electrolyte.

Definition
Advertisements

Solution

It is the inverse of resistance R and may be simply defined as the speed through which current flows in a conductor.

c = `1/R = A/(pl)`

k = `A/l`

Here k is the specific conductance. The SI unit of conductance is Siemens, which is denoted by the symbol ‘S’ and is equal to ohm−1 or Ω1.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Electrochemistry - Exercises [Page 59]

APPEARS IN

NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 2 Electrochemistry
Exercises | Q 2.7 (i) | Page 59
Nootan Chemistry Part 1 and 2 [English] Class 12 ISC
Chapter 3 Electrochemistry
'NCERT TEXT-BOOK' Exercises | Q 3.7 i. | Page 211

RELATED QUESTIONS

The resistance of a conductivity cell containing 0.001 M KCl solution at 298 K is 1500 Ω. What is the cell constant if the conductivity of 0.001 M KCl solution at 298 K is 0.146 × 10−3 S cm−1.


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.


When measuring conductivity with a conductivity cell, cell constant denoted by the symbol G* is given by (electrode area of cross-section equal to ‘A’ and separated by distance ‘l’)


The cell constant of a conductivity cell ______.


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`


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 unit of equivalent conductivity is


Which of the following is not the characteristic of ionic solids?


The conductivity of 0.01 m NaCl solution is 0.00147 ohm–1cm–1. What happens to the conductivity if extra 100 ML is added to the above solution:-


The cell constant is the product of resistance and ______


The decreasing order of electrical conductivity of the following aqueous solutions is:

  1. 0.1 M Formic acid,
  2. 0.1 M Acetic acid,
  3. 0.1 M Benzoic acid.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×