Phases of Matter Flashcards
1
Q
Explanation of the behavior of molecules in matter.
A
Kinetic theory
2
Q
Temperature at which a solid begins to liquefy .
A
Melting point
3
Q
amount of energy required to change a substance from the solid phase to the liquid phase.
A
Heat of fusion.
4
Q
The temp at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid.
A
Boiling point.
5
Q
The amount of energy required for the liquid at its boiling point to become a gas.
A
Heat of vaporization.
6
Q
spreading of particles through out a given volume until they are uniformly distributed.
A
Diffusion
7
Q
Matter consisting of positively and negatively charged particles.
A
Plasma
8
Q
Increase in the size of a substance when the temperature is increased.
A
Thermal expansion.
