What is the procedure to obtain different gases from air?
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Solution
The procedure by which different gases can be obtained from the air is fractional distillation.
Fractional distillation:
To separate the different gases from the air, they need to be converted into a liquid in order to perform fractional distillation.
“To separate a mixture of two or more miscible liquids for which the difference in boiling points is less than , the fractional distillation process is used.”
Fractional distillation involves the separation of two miscible liquids.
Thus when air is converted into liquid, it contains miscible liquids which can be separated out with the help of fractional distillation.
A simple fractionating column consists of a tube packed with glass beads. The beads provide a surface for the vapors to cool and condense repeatedly."
The apparatus for fractional distillation is given below:
