C2.1.5 - Distillation

Question 1

What does simple distillation do?

Answer 1

Separate a solvent from a solution

Question 2

What does simple distillation rely on?

Answer 2

The solvent having a lower boiling point than the solute

Question 3

What is simple distillation good for?

Answer 3

Purifying a solvent

Question 4

How does simple distillation work?

Answer 4

The solution is heated until the solvent evaporates. The solvent then goes to the condenser and condenser into a new container and becomes pure

Question 5

Name all the equipment used in simple distillation

Answer 5

Thermometer
Condenser
Flask
Heat Source (Bunsen Burner)

Question 6

How is the condenser kept cool?

Answer 6

By a constant cold water flow

Question 7

What does fractional distillation do?

Answer 7

It separates 2 or more liquids

Question 8

What does fractional distillation rely on?

Answer 8

All the substances having different boiling points

Question 9

How does fractional distillation work?

Answer 9

Both liquid substances evaporate into the fractionating column. When they condense, the temperature increases, until 1 of the substances fully evaporate while the other drops back, in purity

Question 10

Why is the fractionating column good for fractional distillation?

Answer 10

It has a large surface area on which the vapours can continually condense.