The equivalent conductance of `NaCl` at concentration of `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 `)`

Options

A. `lamda_(c)=lamda_(infty)+ ((B))sqrtc`
B. `lamda_(c)=lamda_(infty)+ ((B)) C`
C. `lambda_(C) = lamda_(infty) - ((B)) C`
D. `lamda_(c)= lamda_(infty) sqrtC`

Explanation

Debye -Huckle onsager equation can be written as `lambda_c=lambdaoo-(B)sqrtC`
Where, `lambda_c` = molar cunductivity of the solution at certain concentration
`lambdaoo=` Limiting molar conductivity
C= Concentration
B = Constant that depends on temperature charge on the ions and dielelctric constant as ell as viscosity of the solution