The resistance of decinormal solution of a salt occupying a volume between two platinum electrodes 1.80 cm apart and 5.4 cm2 area was found to be 32 ohm. Calculate ∧eq.
A
114.1Scm2eq−1
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B
124.1Scm2eq−1
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C
104.1Scm2eq−1
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D
134.1Scm2eq−1
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Solution
The correct option is C104.1Scm2eq−1 Given R = 32 ohm, l=1.80cm,a=5.4cm2 k=1R=1R×1a=132×1.85.4=0.01041Sm−1 ∧eq=k×1000N=0.01041×10000.1=104.1Scm2eq−1