WHAT'S THE MATTER?: CHANGING STATE Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Give 3 ways matter can change state and give an example of each type of change

A

Melting - ice
Evaporation - water
Freezing - water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the word given to the process where a SOLID changes to a GAS without becoming a liquid

A

SUBLIMATION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Who first suggested Particle Theory?

A

DEMOCRITUS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Who is the Brownian Motion named after?

A

Robert Brown, a Scottish botanist who observed that each grain of pollen was ‘filled with particles’ that were ‘very evidently in motion’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A solid has… 3

A
  1. Particles which are packed very closely together
  2. Particles which are arranged in a regular pattern
  3. Particles which can only vibrate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A liquid has… 2

A
  1. The particles move around by not very quickly

2. The particles are quite close together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

A gas has…4

A
  1. Particles which move around very quickly
  2. Particles which move very fast in all directions
  3. Particles which diffuse very quickly
  4. Particles are easy to compress
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is DIFFUSION (of gas)?

A

When gas particles are moving and mixing without being stirred or shaken

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How does the particle theory explain diffusion in liquids?

A

Liquids have more space between each particle than solids which results in quicker diffusion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which is faster, gas or liquid diffusion and why?

A

Gas because the particles are further apart meaning more available spaces to be filled

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why does diffusion in a hot liquid take place faster than in a cold one?

A

Because the heat gives the particles more energy to move

How well did you know this?
1
Not at all
2
3
4
5
Perfectly