Phases of Matter Flashcards
The explanation of how particles in matter behave.
There are three assumptions:
1.) All matter is composed of small particles
2.) These particles are in constant random motion
3.) These particles are colliding with each other and the walls of their container
Kinetic Theory
The temperature at which a solid begins to liquify
The melting point
The amount of energy required to change a substance from the solid phase to the liquid phase at its melting point
The heat of fusion
The temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid
The boiling point
The amount of energy required for the liquid at its boiling point to become a gas
The heat of vaporization
The spreading of particles throughout a given volume until they are uniformly distributed
Diffusion
Matter consisting of positively and negatively charged particles
Plasma
An increase in the size of a substance when the temperature is increased
Thermal Expansion
