Q.

A KCl solution of conductivity 0.14Sm−1 shows a resistance of 4.19Ω  in a conductivity cell. If the same cell is filled with an HCl solution, the resistance drops to1.03Ω . The conductivity of the HCl solution is _____×10−2Sm−1

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answer is 57.

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Detailed Solution

K=GG∗;G∗=KR=0.14×4.19K=1RG∗=11.03×0.14×4.19≃57×10−2Sm−1
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A KCl solution of conductivity 0.14Sm−1 shows a resistance of 4.19Ω  in a conductivity cell. If the same cell is filled with an HCl solution, the resistance drops to1.03Ω . The conductivity of the HCl solution is _____×10−2Sm−1