Phases of Matter - Take Home Quiz Questions #2

Agnes Szakacs

02/11/15

Period 2/3

Unit 1:2  Phases of Matter - Take Home Questions

1. Describe the three phases of matter in terms of shape and volume.
1. Solid - A substance that retains its size and shape without a container; a substance whose molecules cannot move freely except to vibrate.
2. Gas - A substance that can only be contained if it is fully surrounded by a container (or held together by gravitational pull); a substance whose molecules have few intermolecular bonds and can move freely.
3. Liquid - A substance that flows and keeps no definite shape because its molecules are loosely packed and constantly moving. It takes the shape of its container but maintains constant volume.
2. Draw a phase change diagram, and label all components.
   
   
   
   
   

3. What are the names and types of phases changes between the various phases?
1. Solid → Liquid: Melting
2. Gas → Liquid: Condensation
3. Liquid → Gas: Vaporization
4. Liquid → Solid: Freezing
5. Gas → Solid: Deposition
6. Solid → Gas: Sublimation
7. Gas → Plasma: Ionization
8. Plasma → Gas: Recombination  
4. Explain how snow forms by deposition.
1. Deposition is a phase transition in which gas forms into solid. When deposition is in process in water vapor it changes directly into ice without first becoming a liquid. Snow is created like this in clouds.
5. Describe how liquid carbon dioxide can be achieved.
1. There are some ways you can do achieve liquid carbon dioxide. You can increase the pressure of the gas. Or you can increase the temperature of the solid.
6. Describe what temperature and pressure combinations typically contribute to a solid, liquid, or gas being formed.

If you would look at the phase change diagram you can see that:

1. Solid → Is at high pressure and low temperature
2. Liquid → Is in the middle of pressure and temperature
3. Gas → Is at low pressure and high temperature

7. Describe how to separate a mixture of two liquids.

The way to separate two liquids is by reaching their boiling point, and by this you can collect the vapor which will contain only one liquid. Also known as distillation.