Unit 1: Energy, Properties, and Structure of Matter
Matter- something that takes up space and has particles
Solid-
* Fixed Volume
* Fixed Mass
* Organized Molecular Structure (see picture above)
* Definite Shape
* Can NOT move freely, but will vibrate to transfer energy
Liquid-
* Incompressible Fluid
* Fixed Volume
* Fixed Mass
* Changing Shape
* Less Organized Molecular Structure (see picture above)
* Can move freely, flows throughout the substance
Gas-
* Compressible Fluid
* Changing Volume
* Fixed Mass
* Least Organized Molecular Structure (see picture above)
* Lowest attractions between particles-flows freely
Plasma-
Heat Curve of Water:
Kinetic Theory of Matter: explains the forces that exist between molecules and the energy that these molecules possess. ALL matter is composed of small particles. Matter MUST be made up of atoms. The particles are in CONSTANT MOTION. Particles collide with each other as well as the container and DO NOT lose energy.
Kinetic Theory of Matter: Assumptions:
* All matter is composed of small particles
* Small particles are always in constant motion
* Particles collide with each other as well as the container and do not lose energy
** As the temperature goes up so does the energy level.
Melting: Energy Increases, Particle Attraction Decreases (Solid to a Liquid)
Freezing: Energy Decreases, Particle Attraction Increases
Vaporization: Energy Increases, Particle Attraction Decreases (Liquid to a Gas)
Condensation: Energy Decreases, Particle Attraction Increases (Gas to a Liquid)
Sublimation: HUGE Energy Increases, HUGE Particle Attraction Decreases
(Solid to a Gas)
Deposition: HUGE Energy Decreases, HUGE Particle Attraction Increases
(Gas to a Solid)
What is the difference between Evaporation and Boiling?
