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The equivalent conductance of solution i...

The equivalent conductance of solution is …… .
[If cell constant is `1.25 cm^(-1)` and resistance of `N//10` solution is `2.5xx10^(3) Omega`].

A

`2.5" ohm"^(-1) cm^(2) " equiv"^(-1)`

B

`0.5" ohm"^(-1)cm^(2)" equiv"^(-1)`

C

`2.5" ohm"^(-1)cm^(-2)"equiv"^(-1)`

D

`5.0" ohm"^(-1)cm^(-2)"equiv"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) Specific conductance (k)`=1//Rxx"cell constant"`
`(1kxx1.25cm)/((2.5xx10^(3) ohm))xx1.25" cm"`
`=0.05" ohm"^(-1) cm^(-1)`
Equivalent conductance`(Lambda_(E))=(k)/(C )`
`=(0.05" ohm"^(-1) cm^(-1))/(0.1" equiv "cm^(3))`
`=0.5" ohm"^(-1) cm^(-2)"equiv"^(-1)`
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