Q12 of 23 Page 68

Draw the figures of arrangement of apparatus for distillation and fractional distillation.

Distillation: distillation is a process used in order to separate the components by repeated vaporization-condensation cycles.


In this the mixture is kept at the flask and the flask is heated. Due to this the solvent having lower boiling point evaporates and enters the tube where it undergoes condensation. Thus, the mixture gets separated.


Given below is the diagram of distillation.



Fractional Distillation: fractional distillation is the process of separating the mixture of two miscible liquids where the difference between their boiling point is less than 25°C.


Here the apparatus is similar to the simple distillation except that a fractioning tube, which is packed with glass beads. The beads help the vapour to cool and condense at a faster rate.


Given below is the diagram of fractional distillation.



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