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CH361/361H Week 6 Lecture Simple and Fractional Distillation

What is the simple distillation and fractional distillation?
Simple distillation is used to separate mixtures which are having boiling points with a gap of a minimum of 50 degrees.
Fractional distillation is used in separating liquids having boiling points close to one another.
In simple distillation, the experimental setup is simple having two flasks and a condenser.
What are the 3 steps in fractional distillation?
The steps of the process are:
Evaporation.
Crude oil is heated until it evaporates.
Crude oil vapour is put into a fractionating column at the bottom and rises upwards.Condensation.
The temperature is highest at the bottom of the column. Collection.
The fractions are collected.
What is fractional distillation Class 6?
Fractional distillation is a process by which components in a chemical mixture are separated into different parts (called fractions) according to their different boiling points.
Fractional distillation is used to purify chemicals and also to separate mixtures to obtain their components.
For mixtures that contain only one volatile component, a simple distillation can be more than sufficient.
The fractional distillation is more efficient, and is suited for mixtures of volatile liquids.
The closer the difference in the boiling points, the more demanding the distillation.

What is the boiling point of a mixture of liquids? ➢ Temperature at which vapor pressure of solution = external pressure.Autres questions

What is the simple distillation and fractional distillation?