Physical Properties And Changes In Matter Flashcards
(17 cards)
Matter
anything that has weight and occupies space/volume. (s), (l), (g)
Mass
amount of matter an object contains
Gram (g) and kilograms (kg)
Volume
amount of space an object occupies
-Liters (L) and (mL)
Density equation
Density = mass/volume
Solid
-Definite shape
-Definite volume
-Cube= length x width x height= cm3
-Can’t compress
-No specs between particles
-Particles packed together tightly
-Vibrating in position
-Anchored at a specific location
Liquid
-Indefinite shape
-Definite volume
-Can’t compress
-Particles packed close together but not fixed
-In constant motion
-Move freely past each other
Gas
-Indefinite shape
-Takes shape of container
-Indefinite volume
-Volume changes as it expands and contracts
-Compressible
-Gas can squeeze into smaller volumes
-Particles widely spaced
-Why they are compressible, opposed to solids and liquids
-Continuous movement
-Freely flying around
Solid- ice
Increase temp: water- liquid
-During transition from ice to water, temp remain constant 0 degrees celsius (melting point)
Liquid- water
Increase temp: gas- vapor
100 degrees celsius (boiling point)
Gas- vapor
Lower temperature/ less pressure
-Transition: increase pressure
-Liquid- water
-Reduce volume/increase pressure
Condensation
gas loses heat and turns into a liquid
Vaporization
liquid into gas, usually when liquid is heated
(Evaporation- dependent not only on temp, but also on the amount of substance available)
Sublimation
solid changes directly into gas w/o first becoming a liquid
Deposition/desublimation
gas changes directly into solid w/o first becoming a liquid
Melting
when a solid gains heat and changes into a liquid
Freezing
liquid loses heat and turns into a solid
