AIM: How does distillation work?

1
AIM How does distillation work?
Objectives
Correctly label the different parts of the
distillation process. Identify the phase changes
which occur
2
AIM How does distillation work?
Vocabulary
Distillation Fractional Distillation
3
AIM How does distillation work?
Question Has anyone here ever drank distilled
water? Has anyone ever used distilled
water? Answer?
4
(No Transcript)
5
(No Transcript)
6
(No Transcript)
7
1
What happens in Step 1 Liquid water evaporates
(turns to a gas)
8
2
What happens in step 2? The gas (water vapor)
condenses to liquid
9
2
What happens to the salt? Where does it go?
10
2
The salt does not evaporate at that temperature -
it stays in the beaker!
11
Step 3
Step 4
Step 2
Step 5
Step 1
Examine this slide We are going to examine all
5 steps.
12
Step 1
What is happening at step 1. The water is being
heated.
13
Step 2
Step 1
What phase change occurs at step 2. Evaporation.
14
Step 3
Step 4
Step 2
Step 1
What is happening at step 3 and 4 The water
vapor travels down the tube.
15
Step 3
Step 4
Step 2
Step 5
Step 1
What phase change is occurring at step 5? The
water vapor condenses into liquid water
16
Step 3
Step 4
Step 2
Step 5
Step 1
What causes the water to condense? Lower
temperature - slower movement of the water
particles - less energy
17
Petroleum is a natural mixture of hydrocarbons
and must be processed to make gasoline, heating
oil, and other products the process is called
fractional distillation
18
(No Transcript)
19
when the petroleum is heated, it changes into
a gas (vaporize), which is collected and cooled
-- when it cools it changes back to a liquid
because of condensation. Because different
substances condense at different temperatures,
the distillation process is able to separate the
different petroleum products
20
COMPLETE
THE FOLLOWING PAGE ACTIVTY/QUIZ
21
Step 3
Step 2
Step 4
Step 5
Step 1
22
Step 3
Step 2
Step 4
Step 5
Step 1