Explain how fractional distillation is used to separate miscible liquids.
Explain how fractional distillation is used to separate miscible liquids.
Fractional distillation is a process by which two or more miscible liquids with different boiling points are separated by the process of distillation. Liquids that mix with each other are called miscible liquids. This method is useful only if the difference in the boiling points of liquids is 20oC or more.
1. In fractional distillation the mixture is put into the distillation flask. The side tube of the distillation flask is connected to Liebig's condenser. The inlet tube of the condenser is connected to a water source.
2. As the mixture boils, vapours rises up the column. The vapour with high boiling point condenses and flows back to the distillation flask while vapours of low boiling point continue up.
3.The vapours at the top of the column then pass into the Liebig's condenser, which cools it down until it liquefies and flows into the receiving flask a distillate.
4. The liquid with high boiling point is left behind and thus the miscible liquids can be separated effectively.
Fractional distillation is a process by which two or more miscible liquids with different boiling points are separated by the process of distillation. Liquids that mix with each other are called miscible liquids. This method is useful only if the difference in the boiling points of liquids is 20oC or more.
1. In fractional distillation the mixture is put into the distillation flask. The side tube of the distillation flask is connected to Liebig's condenser. The inlet tube of the condenser is connected to a water source.
2. As the mixture boils, vapours rises up the column. The vapour with high boiling point condenses and flows back to the distillation flask while vapours of low boiling point continue up.
3.The vapours at the top of the column then pass into the Liebig's condenser, which cools it down until it liquefies and flows into the receiving flask a distillate.
4. The liquid with high boiling point is left behind and thus the miscible liquids can be separated effectively.
