What is the resistivity of a solution?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The resistivity of a solution depends on the concentration and type of dissolved ions. Ionic solutions are generally good conductors with low resistivity:
- Concentrated salt solution: 0.05-0.1 Ω·m
- Dilute electrolytes: 1-100 Ω·m
- Very dilute solutions: approaching that of pure water
The more ions present, the lower the resistivity and the better the conductivity. This principle is used in conductivity meters to measure solution concentration.
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