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The equivalent conductance of NaCl at co...

The equivalent conductance of NaCl at concentration C and at infinite dilution are `lambda_(C)` and `lambda_(oo)`, respectively. The correct relationship between `lambda_(C)` and `lambda_(oo)` is given as (where, the constant B is positive)

A

`lamda_(c)=lamda_(oo)+(B)sqrt(C)`

B

`lamda_(c)=lamda_(oo)+(B)C`

C

`lamda_(c)=lamda_(oo)-(B)C`

D

`lamda_(c)=lamda_(oo)-(B)sqrt(C)`

Text Solution

Verified by Experts

The correct Answer is:
D
According to Debye-Hckel theory, for a strong electrolyte (like NaCl),
`wedge_(c)=wedge_(oo)-(B)sqrt(C)`
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