Write mathematical expression for Kohlrausch law.

Explanation

**Step-by-Step Solution for Kohlrausch's Law:**

1. **Understanding Kohlrausch's Law**:
Kohlrausch's Law states that the total conductivity of an electrolyte solution can be expressed as the sum of the contributions from its individual ions. This can be applied to both equivalent conductance and molar conductance.

2. **Mathematical Expression for Equivalent Conductance**:
The equivalent conductance (λ_eq) of an electrolyte can be expressed as:
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