The equivalent conductance of NaCl at concentration C and at infinite dilution are λC and λ∞ respectively The correct relationship between λC and λ∞ is given as (where, the constant B is positive)

According to Debye Huckel Onsager equation,           λC=λ∞−BCwhere, λC = limiting equivalent conductivity at concentration C          λ∞  = limiting equivalent conductivity at infinite dilution              C = concentration