MCQ
The equivalent conductance of $NaCl $ at concentration $C$ and at infinite dilution are $\lambda _C$ and $\lambda _{\infty}$ respectively. The correct relationship between $\lambda _C$ and $\lambda _{\infty}$ is given as :

(Where the constant $B$ is positive)

  • A
    $\lambda _C =\lambda _{\infty} +(B)C$
  • B
    $\lambda _C =\lambda _{\infty} - (B)C$
  • $\lambda _C =\lambda _{\infty} -(B) \sqrt{C}$
  • D
    $\lambda _C =\lambda _{\infty} +(B) \sqrt{C}$

Answer

Correct option: C.
$\lambda _C =\lambda _{\infty} -(B) \sqrt{C}$
c
According to Debye Huckle onsager equation,

$\lambda_{C}=\lambda_{\infty}-B \sqrt{C}$

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