A) \[1.24\times {{10}^{-4}}\,S{{m}^{2}}mo{{l}^{-1}}\]
B) \[12.4\times {{10}^{-4}}\,S{{m}^{2}}mo{{l}^{-1}}\]
C) \[124\times {{10}^{-4}}\,S{{m}^{2}}mo{{l}^{-1}}\]
D) \[1240\times {{10}^{-4}}\,S{{m}^{2}}mo{{l}^{-1}}\]
Correct Answer: A
Solution :
[a] Conductivity \[(\kappa)=\frac{\ell }{R.a}\] \[\kappa =\frac{l}{R.a};\] cell constant. \[\left( \frac{l}{a} \right)~=1.29\times 100=129\] Again conductivity of 0.02M solution \[\kappa =\frac{1}{520}\times 129\] \[{{\Lambda }_{m}}=\frac{\kappa \times 1000}{M}=\frac{129}{520}\times \frac{1000}{0.02}\] \[=1.24\times {{10}^{-4}}S\,{{m}^{2}}mo{{l}^{-1}}\]You need to login to perform this action.
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