Listen to the full series on BBC Sounds. Fractional distillation works because the different liquids have different boiling points. When the mixture is heated: vapours rise through a column which is ...
In this video, Fran Scott explains fractional distillation - the separation of crude oil into fractions. Crude oil is a finite resource; petrol and other fuels are produced from it using fractional ...
CORRECTION: This story was updated on Dec. 16, 2015, to correct the description of distillation and to clarify the separation difficulty posed by azeotropes. A new method for heating liquid mixtures ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results