Properties of Matter Flashcards
1
Q
Diffusion
A
How easily one substance is able to move through another.
2
Q
Exothermic
A
The container feels warmer, heat it released. (exo=out, therm=heat)
3
Q
Endothermic
A
The container feels cooler, heat is absorbed. (Endo=in, therm=heat)
4
Q
Intermolecular Forces
A
Between molecules
5
Q
Intramolecular forces
A
Within molecules. (Ionic and covalent bonds involving electrons)
6
Q
Elastic Collision
A
Gas particles collide with the sides of the container, and exerts a force.
This is gas pressure.
7
Q
Kinetic molecular theory
A
Explains why matter behaves as it does. •particles that make matter are small •there are spaces between particles •particles are in constant motion •there are forces of attraction between particles
8
Q
Evaporation
A
Liquid particles on the surface have enough energy to over come IMFs
9
Q
Condensation
g)-(l
A
Kinetic energy of the particles decrease as it cools. Particles slowdown, IMFs take hold. Energy released (Exothermic) to surroundings.
10
Q
Plasma
A
A gaseous mixture of positive ions and electrons.
99% of all matter is plasma
Rare on Earth (ie. aurora borealis, stars, lightning, lightning bolts)
