Particle theory: Particles: Chemistry: (9:1)
Studied by 1 person
Call with Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/21
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
22 Terms
Solid
Definite shape and volume
Liquid
Definite volume but no definite shape
Gas
No definite shape or volume
Melting point
The temperature at which a solid becomes a liquid
Boiling point
The temperature at which a liquid changes to a gas
Particle theory
Matter is made up of tiny particles which are represented as small solid spheres which are constantly moving.
Uses of particle theory
Explaining changes of state
Movement of particles in a solid
Vibrate about a fixed position
Movement of particles in a liquid
Move around and slide past one another
Movement of particles in a gas
Move freely and quickly in all directions
Limitations of particle theory
Does not take into account forces between particles, size of particles, space between particles
Solid --> Liquid
Melting
Liquid --> Solid
Freezing
Liquid --> Gas
Boiling
Gas --> Liquid
Condensing
Matter
Anything that has mass and takes up space
(s)
Solid
(l)
Liquid
(g)
Gas
(aq)
aqueous (dissolved in water)
When a substance is heated
Particles stay the same size but move further apart, causing the substance to expand
When a substance cools
Particles stay the same size, but move closer together, causing the substance to contract
Note 
Flashcards (60)