How will you separate a mixture containing kerosene and petrol (difference in their building points is more than 25°C), which are miscible with each other?

Q.:- How will you separate a mixture containing kerosene and petrol (difference in their building points is more than 25°C), which are miscible with each other?

 

Answer:-

The mixture of two miscible liquids such as kerosene and petrol whose boiling points differ by more than 25°C can be easily separated by the technique of simple distillation.



The separation is based upon the principle that the boiling point of more volatile (low building liquid of the mixture. The vapour almost exclusively consists of the more volatile liquid Likewise at the boiling of the less volatile (high boiling) liquid, vapours almost entirely consists  of the less volatile liquid since the more volatile liquid has already distilled over.


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