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Question

# The specific conductance of a N/10 KCl solution at 18∘C is 1.12×10−2mhocm−1. The resistance of the solution contained in the cell is found to be 65 ohms. Calculate the cell constant.

A
0.728cm1
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B
0.928cm1
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C
0.428cm1
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D
0.328cm1
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Solution

## The correct option is A 0.728cm−1The resistance R of the solution contained in the cell is found to be 65 ohms. The conductance C of the solution is C=1R=165=0.015385ohm−1The cell constant is the ratio of specific conductance to conductance.Cell constant =1.12×10−2mhocm−10.015385ohm−1=0.728cm−1

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