8.2 DRINKING SEAWATER Flashcards
1
Q
What is desalination used to obtain?
A
Pure water from seawater
2
Q
What is one method of desalination?
A
Distillation
3
Q
What is distillation?
A
Distillation involves heating seawater. Pure water evaporates to make steam. The steam travels through a condenser where it cools and condenses.
4
Q
What can distillation process do?
A
Distillation process can separate water from seawater because seawater has a higher boiling point than pure water
5
Q
What are the benefits of desalination?
A
Makes drinking water for many people
6
Q
What are the problems of desalination?
A
-People don’t like its taste
-Does not contain dissolved calcium compounds that can benefit health
-Need huge amounts of electricity
-May kill sea plants and animals when very salty water returns to the sea
