Chemical Engineering Thermodynamics

A solute distributes itself between two non-miscible solvents in contact with each other in such a way that, at a constant temperature, the ratio of its concentrations in two layers is constant, irrespective of its total amount”. This is

  • A. The distribution law
  • B. Followed from Margule’s equation
  • C. A corollary of Henry’s law
  • D. None of these
Answer: Option A.

The distribution laws says that for two non-miscible solvents will be in equilibrium if the chemical potential of solute is same in both the phases the concentration need not be equal but the ratio of concentrations will be remains constant once equilibrium is reached.

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