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chemistry 「year 7」 > states of matter > Flashcards

states of matter Flashcards

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1
Q

What shape does a solid have?

A

Fixed shape

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2
Q

What shape does a liquid have?

A

Matches the shape of their container from the bottom up.

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3
Q

What shape does a gas have?

A

Spreads out to match the shape of their whole container.

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4
Q

Can a solid be compressed?

A

Can’t be compressed.

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5
Q

Can a liquid be compressed?

A

Can’t be compressed significantly.

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6
Q

Can a gas be compressed?

A

Can be compressed.

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7
Q

Do solids have a fixed volume?

A

Yes.

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8
Q

Do liquids have a fixed volume?

A

Yes.

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9
Q

Do gases have a fixed volume?

A

No, they match the volume of their container.

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10
Q

Can solids flow?

A

Don’t flow.

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11
Q

Can liquids flow?

A

Flow easily.

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12
Q

Can gases flow?

A

Diffuse

(Spread out until equally distributed throughout a container)

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13
Q

State three points of the particle model.

A
  • All matter is made up of tiny particles.
  • Particles are represented by small, solid spheres.
  • Three states of matter have different arrangements of particles.
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14
Q

State three points of the particle model’s limitations.

A
  • Particles have forces of attraction between them that cannot be shown using this model.
  • Particles can be different shapes depending on the substance.
  • Particles are not solid; much of the particles are empty space.
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15
Q

Describe the motion of particles in a solid.

A

Particles only vibrate around a fixed point, they cannot move.

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16
Q

Describe the motion of particles in a liquid.

A

Particles can flow over each other but still remain close together.

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17
Q

Describe the motion of particles in a gas.

A

Particles can move freely in a container.

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18
Q

solid → gas is…

A

subliming

19
Q

solid → liquid is…

A

melting

20
Q

liquid → gas is…

A

boiling

21
Q

gas → liquid is…

A

condensing

22
Q

liquid → solid is…

A

freezing

23
Q

gas → solid is…

A

subliming (or deposition)

24
Q

solid → gas
energy is..
[provided or removed]

A

Provided

25
Q

solid → liquid
energy is…
[provided or removed]

A

Provided

26
Q

liquid → gas
energy is…
[provided or removed]

A

Provided

27
Q

gas → liquid
energy is…
[provided or removed]

A

Removed

28
Q

liquid → solid
energy is…
[provided or removed]

A

Removed

29
Q

gas → solid
energy is…
[provided or removed]

A

Removed

30
Q

The temperature at which a substance turns from a solid to a liquid is called

A

…the melting point

31
Q

The temperature at which a substance turns from a liquid to a solid is called

A

…the freezing point

32
Q

The temperature at which a substance turns from a liquid to a gas is called

A

…the boiling point

33
Q

The temperature at which a substance turns from a gas to a liquid is called

A

…the condensing point

34
Q

Melting point = […] point

A

MELTING POINT = FREEZING POINT

35
Q

Boiling point = […] point

A

BOILING POINT = CONDENSING POINT

36
Q

Describe the difference between evaporation and boiling.

[evaporation]

A
  • A substance can evaporate at any temperature whilst it is a liquid.
  • Evaporation can only take place at the surface of a liquid.
37
Q

Describe the difference between evaporation and boiling.

[boiling]

A
  • A substance can only boil at one temperature; the boiling point of that substance.
  • Boiling takes place throughout the liquid.
38
Q

Between particles there are [_o__es _f a__ra___on]

A

Between particles there are forces of attraction.

39
Q

The stronger the forces between the particles, the more energy needed to change the state of the substance. This means that the melting and boling points […]

A

…will be higher.

40
Q

The weaker the forces between the particles, the less energy needed to change the state of the substance. This means that the melting and boiling points […]

A

…will be lower.

41
Q

Above its boiling point a substance is […]

A

gas

42
Q

Between its melting & boiling points a substance is […]

A

liquid

43
Q

Below its melting point a substance is […]

A

solid

44
Q

What is all matter made up of?

A

Particles.

chemistry 「year 7」 (5 decks)

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