Conductance and Conductivity
Trending Questions
Q. State True or False?
Conductance is also dependent on the factors on which resistance is dependent
Conductance is also dependent on the factors on which resistance is dependent
- True
- False
Q. The resistance of a 0.1 N solution of a salt is found to be 2.5×103 ohm. The equivalent conductance of the solution is: (Cell constant = 1.15 cm−1)
- 5.6 Scm2/eq
- 4.6 Scm2/eq
- 6.6 Scm2/eq
- 7.6 Scm2/eq
Q. The standard units of conductivity or specific conductance [k] is
Where S = Siemens
cm = centimeter
Where S = Siemens
cm = centimeter
- S−1cm−1
- Scm−1
- S cm
- S−1cm
Q. Resistance is reciprocal of conductance. True or false?
- True
- False
Q.
Which of the following shows electrical conduction
[CBSE PMT 1999; AIIMS 1999]
Potassium
Sodium
Graphite
Diamond
Q. The resistance of a 0.5 M solution of an electrolyte in a cell was found to be 50 Ω. If the electrodes in the cell are 2.2 cm apart and have an area of 4.4 cm2 then the molar conductivity (in Sm2mol−1) of the solution is:
- 0.2
- None of these
- 0.02
- 0.002
Q. When a solution of specific conductance 1.342 Sm−1 was placed in a conductivity cell with parallel electrodes, the resistance was found to be 170.5 ohm. The area of the electrodes is 1.86×10−4 m2 . Calculate the distance between the electrodes.
- 0.0452 m
- 4.25 m
- 42.5 m
- 0.425 m
Q. The molar conductance of NH4OH at 0.01M concentration is 11.3 ohm−1 cm2 mol−1. The degree of dissociation
of NH4OH is
(molar conductance at infinite dilution is 271.1)
of NH4OH is
(molar conductance at infinite dilution is 271.1)
- 12.6%
- 4.2%
- 1.3%
- 41%
Q. The resistance of a 0.2 M solution of an electrolyte is 50 Ω. The specific conductance of the solution is 1.4 S m−1 .
The resistance of a 0.5 M solution of the same electrolyte occupying the same volume is 280 Ω. The molar conductivity of the above mentioned 0.5 M solution of the electrolyte in S m2mol−1 is:
The resistance of a 0.5 M solution of the same electrolyte occupying the same volume is 280 Ω. The molar conductivity of the above mentioned 0.5 M solution of the electrolyte in S m2mol−1 is:
- 5×103
- 5×102
- 5×10−3
- 5×10−4
Q. The correct order of equivalent conductance at infinite dilution for LiCl, NaCl, and KCl would be:
- LiCl≅NaCl>KCl
- LiCl>KCl>NaCl
- KCl>NaCl>LiCl
- LiCl>NaCl>KCl