EVERYDAY SCIENCE

Detailed explanation-1: -Fractional distillation is used to separate mixture in which constituent liquids has boiling point difference less than 30oC. We can separate mixture of ethyl alcohol and water by fractional distillation because boiling point of ethyl alcohol is 78.4oC and that of water is 100oC.

Detailed explanation-2: -For example, liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This method works because the liquids in the mixture have different boiling points. When the mixture is heated, one liquid evaporates before the other.

Detailed explanation-3: -Distillation is a technique for separating substances that have different boiling points. During distillation, substances are turned into gases by heating them up. If substances have different boiling points, the vapors coming off of the mixture will contain more of the substance with the lowest boiling point.

Detailed explanation-4: -Fractional distillation is the separation of a mixture of miscible liquids into its component parts based on the difference in their boiling points.