Question

ionic conductance of H^+ and SO4^-2 are x and y S cm^2mol^-1 hence equivalent conductivity of H2SO4 is

Answer 1

Ionic conductance of an ion is obtained by multiplying the equivalent conductance at infinite dilution of any strong electrolyte that contain ion.
Here ionic conductance λH+ is x
ionic conductance λSO4- is y
so according to Kohlrausch's law = 
λH2SO4​ = λH+ + λSO4- = X + Y​

Answer 2

2x + y/2 is the correct answer.

Explanation:

• Equivalent conductance can be defined as the conductance produced by an equivalent ion present in the solution.
• For H⁺, no.of e⁻ change =1
• For SO₄²⁻, no.of e⁻ change =2
• Thus equivalent conductance of H₂SO₄.
• H₂SO₄ = 2H⁺ + SO₄²⁻.
• Eg Conductance =  2[Ionic conductance of H⁺ ]/ nf +[ Ionic Conductance of SO₄²⁻ /nf ].

Eg Conductance = ​2x + y/2.

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