Question: Why does Heat sensitive materials with a very high latent heat of vaporization may be economically separated using liquid extraction? Why does selectivity of solvent

  1. Why does Heat sensitive materials with a very high latent heat of vaporization may be economically separated using liquid extraction?
  2. Why does selectivity of solvent used in extraction greater than 1 and why is it that when selectivity is unity, there will be no separation that will occur?
  3. Why does when t the solvent dissolves very little of the solute then large quantity of solvent is required to extract the solute

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