A) \[124\times {{10}^{-4}}S-{{m}^{2}}/mol\]
B) \[1240\times {{10}^{-4}}S-{{m}^{2}}/mol\]
C) \[1.24\times {{10}^{-4}}S-{{m}^{2}}/mol\]
D) \[12.4\times {{10}^{-4}}S-{{m}^{2}}/mol\]
Correct Answer: A
Solution :
| [a] at \[c=0.1\,M;\] |
| \[\frac{l}{a}=kR=1.29\times 100\] at \[c=0.02\text{ }M;\] |
| \[\kappa =\frac{\ell }{a\times R}=\frac{1.29\times 100}{520}=0.248\,S/m\] |
| Also, \[\Lambda =\frac{k}{M\left( in\,mol/l \right)}=\frac{k}{M\times {{10}^{3}}\left( in\,mol/{{m}^{3}} \right)}\] |
| \[=\frac{0.248}{0.02\times {{10}^{3}}}=124\times {{10}^{-4}}S{{m}^{2}}/mol\] |
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