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The purging of impurities from a compound by crystallization:


occurs when the compound is put under great pressure


occurs when the compound is vaporized


occurs after the liquid melt cools back to a solid


occurs after condensation from the vapor phase

Verified Answer :

scme1702

C.

This is also the only change by which crystals may be produced.

Answer;

occurs after the liquid melt cools back to a solid

The purging of impurities from a compound by crystallization occurs after the liquid melt cools back to a solid.

Explanation;

  • Purging of impurities from a compound by crystallization is done through a method known as melt crystallization. Melt crystallization is a type of cooling crystallization process which is operated close to the melting point of the pure compound.
  • The sample for melt crystallization id normally an impure compound. When the impure sample is cooled below the equilibrium temperature the result is formation of a solid phase which is more pure that the initial compound, while the impurities remain in the impure sample.

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