1. States that n₁dμ₁ + n₂dμ₂ + ....njdμj = 0, for a system of definite composition at constant temperature and pressure
  2. Applies only to binary systems
  3. Finds no application in gas-liquid equilibria involved in distillation
  4. None of these
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1 Answers

Answer: Option 1

The Gibbs–Duhem equation states that $$\sum\nolimits_{i\, = \,1}^n {} {n_i}d{\mu _i} = 0$$ Here the addition to be done for an particular component in different phases.

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