Resistance of a decimolar solution between two electrodes 0.02 meter apart and 0.004 m2 in the area was found to be 50 ohms. Specific conductance (\(\)k) is : 
1. \(0.1 Sm^{-1}\)
2. \(1 Sm^{-1}\)
3. \(10~ S~m^{-1}\)
4. \(4 \times 10^{-4} S~m^{-1}\)
Subtopic:  Conductance & Conductivity |
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\(\land^o_m\) for NaCl, HCl and \(\mathrm{CH_3COONa }\) are 126.4, 425.9, and 91.05 S cm2 mol–1 respectively. If the conductivity of 0.001028 mol L–1 acetic acid solution is \(4.95 \times 10^{-5} S ~cm^{-1} \), the degree of dissociation of the acetic acid solution is:

1. 0.01233 2. 1.00 
3. 0.1233  4. 1.233
Subtopic:  Conductance & Conductivity |
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Resistance of a conductivity cell filled with 0.1 mol L–1 KCl solution is 100 . If the resistance of the same cell when filled with 0.02 mol L–1 KCl solution is 520 . The conductivity of 0.1 mol L–1 KCl solution is 1.29 S/m. The molar conductivity of 0.02 mol L–1 KCl solution is-

1.
134 S cm2 mol–1
2. 124 S cm2 mol–1
3. 144 S cm2 mol–1
4. 154 S cm2 mol–1

Subtopic:  Conductance & Conductivity |
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For a conductivity cell containing 10–3 M KCl solution at 298 K, the resistance is 1500 ohm and the conductivity is 0.15×10–3 S cm–1. The cell constant of the cell is:

1. 10.0 cm–1 
2. 0.10 cm–1 
3. 0.115 cm–1 
4. 0.225 cm–1 
Subtopic:  Conductance & Conductivity |
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The incorrect statement about the solution of electrolytes is:

1. Conductivity of solution depends upon the size of ions.
2. Conductivity depends upon the viscosity of solution.
3. Conductivity does not depend upon the solvation of ions present in solution.
4. Conductivity of solution increases with temperature.
Subtopic:  Conductance & Conductivity |
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Kohlrausch gives the following relation for strong electrolytes:
\(\wedge=\wedge_{0}-A \sqrt{C}\)
Which of the following equality holds?
\(\text { 1. } \Lambda=\Lambda_{0} \text { as } C \longrightarrow \sqrt{\Lambda}\)
\(\text { 2. } \Lambda=\Lambda_{0} \text { as } C \longrightarrow \infty\)
\(\text { 3. } \Lambda=\Lambda_{0} \text { as } \mathrm{C} \longrightarrow 0\)
\(\text { 4. } \Lambda=\Lambda_{0} \text { as } C \longrightarrow 1\)
Subtopic:  Conductance & Conductivity |  Kohlrausch Law & Cell Constant |
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