Advertisements
Advertisements
प्रश्न
Why does the conductivity of a solution decrease on dilution of the solution?
Why does the specific conductivity (κ) of a solution decrease on dilution?
Advertisements
उत्तर
The specific conductivity (κ) of an electrolytic solution decreases during dilution because the number of ions present per unit volume of the solution decreases.
संबंधित प्रश्न
The number of electrons that have a total charge of 9650 coulombs is ____________.
| Electrolyte | KCl | KNO3 | HCl | NaOAC | NaCl |
| Λ_ (S cm mol−1) |
149.9 | 145.0 | 426.2 | 91.0 | 126.5 |
Calculate \[\ce{Λ^∘_{HOAC}}\] using appropriate molar conductances of the electrolytes listed above at infinite dilution in water at 25°C.
Faradays constant is defined as ____________.
Which of the following electrolytic solution has the least specific conductance?
The equivalent conductance of `"M"/36` solution of a weak monobasic acid is 6 mho cm2 equivalent−1 and at infinite dilution is 400 mho cm2 equivalent−1. The dissociation constant of this acid is ____________.
A conductivity cell has been calibrated with a 0.01 M, 1 : 1 electrolytic solution (specific conductance (κ = 1.25 × 10−3 S cm−1) in the cell and the measured resistance was 800 Ω at 25°C. The cell constant is, ____________.
Which of 0.1 M HCl and 0.1 M KCl do you expect to have greater `Λ_"m"^∘` and why?
Arrange the following solutions in the decreasing order of specific conductance.
i) 0.01 M KCl
ii) 0.005 M KCl
iii) 0.1 M KCl
iv) 0.25 M KCl
v) 0.5 M KCl
Why is AC current used instead of DC in measuring the electrolytic conductance?
Ionic conductance at infinite dilution of Al3+ and \[\ce{SO^{2-}_4}\] are 189 and 160 mho cm2 equiv−1. Calculate the equivalent and molar conductance of the electrolyte Al2(SO4)3 at infinite dilution.
