Explain the method of fractional distillation. chapter 2 can study by students of class 9. These definitiona and formulas of Class 9 Science Chapter 2: is Matter Around Us Pure is developed and witten by our expert teachers. Science formulas. Explain the method of fractional distillation. is prepapred and collected from varius resources to help the students.
Explain the method of fractional distillation.
Answer: This method is used to separate the mixture of two miscible liquids where difference between their boiling points is less than 25 ÂșC. Also to separate a mixture of two or more miscible liquids for which the difference in boiling points is less than 25 K, fractional distillation process is used, for example, for the separation of different gases from air, different factions from petroleum products etc. The apparatus is similar to that for simple distillation, except that a fractionating column is fitted in between the distillation flask and the condenser. A simple fractionating column is a tube packed with glass beads. The beads provide surface for the vapours to cool and condense repeatedly, as shown in following figure.
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