The ratio of cell constant and resistance in Conductometric titration is known as
(a) EMF (b) Specific conductance (c) Standard potential (d) None of these
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The ratio of cell constant and resistance in Conductometric titration is known as specific conductance (option-b).
- Specific conductance is also known as conductivity.
- Conductivity measures the ability of an electrolytic solution to conduct electricity.
- It is denoted by "k" and pronounced as "kappa".
- Conductivity is the inverse of resistivity (ρ) i.e. k = 1 / ρ
- Its S.I. unit is S/m.
- Cell constant is the distance between the electrodes ( l) per unit area (A) of electrodes. It is denoted by G*.
- G* = l / A
- Resistance, R = ρ x ( l/A) or R = ρ x G*
- In terms of conductivity, R = (1/k) x G*
- And, k = G* / R
- Specific conductance = cell constant / resistance
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