questions( 1 -10)

questions( 1 -10)  --

1. _______________ is the process by which a gas becomes a liquid.
2. _______________ is the process by which a liquid becomes a gas.
3. The normal boiling point of water is __________.
4. The _______________ of a liquid is its resistance to flow.
5. _______________ is the process by which a solid turns directly to a
gas.
6. _______________ have definite shape and definite volume.
7. _______________ is the process by which a solid turns to a liquid.
8. _______________ is the process by which a gas turns directly to a
solid.
9. _______________ is the process by which a liquid becomes a solid.
10. True solids are said to possess ______________ structure.

Answer

1. [condensation]—If you go outside on a cool morning, you may find
condensation on many cool surfaces.
2. [vaporization]—The steam that you see coming from a teapot is the result
of vaporization.
3. [100 oC or 373 K]—You will learn more about the Kelvin scale in Chapter 2.
4. [viscosity]—Liquids with a great deal of viscosity are very resistant to flow.
5. [sublimation]
6. [solids]—Solids don’t take the shape and size of their containers.
7. [fusion]—The term fusion is also used for a nuclear process that we will
discuss in Chapter 6.
8. [deposition]—When water vapor “freezes” onto a cold surface, deposition
is taking place.
9. [solidification]—This is the process that we normally call “freezing.” Many
people associate the term “freezing” with “cold,” but the process of
solidification can happen at relatively high temperatures for some substances.
10. [crystalline]