JEE Mains · Chemistry · STD 12 - 2. Electrochemistry
For strong electrolyte \(\Lambda_{m}\) increases slowly with dilution and can be represented by the equation
\(\Lambda_{ m }=\Lambda_{ m }^{\circ}- Ac ^{1 / 2}\)
Molar conductivity values of solution of strong electrolyte AB at \(18^{\circ} C\) are given below :
| \(c \left[ mol~L ^{-1}\right]\) | 0.04 | 0.09 | 0.16 | 0.25 |
| \(\Lambda_{ m }\left[ S~cm^2~mol^{-1}\right]\) | 96.1 | 95.7 | 95.3 | 94.9 |
- A 2
- B 4
- C 6
- D 8
Answer & Solution
Correct Answer
(B) 4
Step-by-step Solution
Detailed explanation
Using equation : \(\Lambda_{ m }=\Lambda^0{ }_{ m }- A \sqrt{ c }\) \(96.1=\Lambda_{ m }^0- A \sqrt{0.04}\) \(96.1=\Lambda_{ m }^0- A \times 0.2 \quad\ldots(1)\) \(95.7=\Lambda_{ m }^0- A \times \sqrt{0.09}\) \(95.7=\Lambda_m^0- A \times 0.3 \quad\ldots(2)\) From eq. (1) and eq.…
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