PNM (DECK NOT DONE)

Question 1

state the Kinetic Theory of Matter

Answer 1

all matter is made up of numerous tiny particles in continuous random motion

Question 2

what is Brownian motion?

Answer 2

the random movement of particles suspended in a liquid or gas

Question 3

state the shape, volume, ease of flow and compressibility of solids

Answer 3

solids:
- have fixed shape
- have fixed volume
- do not flow
- are not compressible

Question 4

state the shape, volume, ease of flow and compressibility of liquids

Answer 4

liquids:
- have no fixed shape, they take the shape of the container
- have fixed volume
- can flow
- are not compressible

Question 5

state the shape, volume, ease of flow and compressibility of gases

Answer 5

gases:
- have no fixed shape, they take the shape of the container
- have no fixed volume
- can flow
- are compressible

Question 6

draw 2D particle diagrams for a solid, liquid and gas

Answer 6

solid: min. 9 particles, regular pattern, should fill up entire box (touch all sides of box), should touch each other
liquid: min. 9 particles, no regular pattern, some particles must touch boundaries of box, should touch each other
gas: min. 5 particles, no regular pattern, particles can be separate from each other, do not have to touch boundaries of box
note: all particles must be the same size.

Question 7

understand that the kinetic theory of matter, which influences the:
- arrangement of particles
- motion of particles
- forces of attraction between particles
causes the resulting properties of solids, liquids and gases (shape, volume, ease of flow, compressibility)

Answer 7

:D

Question 8

state the arrangement of particles, motion of particles, and forces of attraction between particles in a solid

Answer 8

arrangement: particles arranged in a fixed, regular pattern, packed closely together.
motion: particles vibrate about fixed positions.
forces of attraction: strong forces of attraction between particles.

Question 9

state the arrangement of particles, motion of particles, and forces of attraction between particles in a liquid

Answer 9

arrangement: particles are free to move. no fixed positions, no regular pattern. particles further apart than in a solid, closer together than in a gas.
motion: particles slide freely past one another and can change positions.
forces of attraction: weaker forces of attraction than in solid, stronger than in gas.

Question 10

state the arrangement of particles, motion of particles, and forces of attraction between particles in a gas

Answer 10

arrangement: particles are free to move. no fixed positions, no regular pattern. particles very far apart.
motion: particles move freely and randomly at high speeds, occupying any available space.
forces of attraction: negligible/very weak forces of attraction between particles.