Question

Separating mixtures are separated using distillation method ? If the difference in boiling point of constituents is less than 25. K then which method will you adopt ? Give an example where this method is used for separation

Answer 1

when the difference in boiling point of constituents is very small - less than 25  K then fractional distillation is the ideal method. The reason that fractional distillation gives better separation between the liquids is because the glass beads in the fractionating column provide "theoretical plates" on which the refluxing liquid can condense, re-evaporate, and condense again, essentially distilling the compound over and over. this will distillate the compound multiple times giving out the pure substances. comment if u have any problem