phases of matter Flashcards
1
Q
kinetic theory
A
an explanation of how particles in matter behave
2
Q
melting point
A
the temperature at which a solid begins to liquefy
3
Q
heat of fusion
A
the amount of energy required to change a substance from solid to liquid
4
Q
boiling point
A
the point a liquid is the temp of which the pressure of the vapor in the liquid is = t to the external pressure
5
Q
heat of vaporization
A
the amount of energy required for the liquid at its boiling ping to become a gas
6
Q
diffusion
A
spreading of particles throughout a given volume
7
Q
plasma
A
matter consisting of positively and negatively charged particles
8
Q
thermal expansion
A
an increased in the size of a substance when the temp in increased
