phases of matter Flashcards
1
Q
kinetic theory
A
an explanation of how particles in matter behave
2
Q
melting point
A
temp. where a solid begins to melt
3
Q
heat of fusion
A
the amount of energy required for a solid-to-liquid change
4
Q
boiling point
A
temp. where liquid starts to boil
5
Q
heat of vaporization
A
amount of energy required for a liquid-to-gas change
6
Q
diffusion
A
spreading of particles until they are equally distributed
7
Q
plasma
A
matter consisting of of positive & negative charged particles
8
Q
thermal expansion
A
increase in the size of a substance when the temp. is increaced
