P6(Molecules And Matter) Flashcards

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1
Q

What is the formula for density

A
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2
Q

What is the movement for a solid

A

Vibrate about fixed positions, particles are clearly packed

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3
Q

What is the movement for liquids

A

Layers can flow over each other, particles still in contact with each other

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4
Q

What is the movement for Gases

A

Random directions and far away from each other and have random speeds

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5
Q

What is the Energy for solids

A

Least energy compared to liquids and gases because particles have restricted movements

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6
Q

What is energy for liquids

A

More energy compared to solids but less energy compared to gases because their particles have more more movement

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7
Q

What is the energy for Gases

A

Most energy compared to liquids and solids because they have higher speeds

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8
Q

What is the force for solids

A

Strong forces of electrostatic attraction compared to liquids and gases

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9
Q

What is the force for liquids

A

Particles are still compact strong force of electrostatic attraction but less then solids

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10
Q

What is the force for Gases

A

Weak forces of electrostatic attraction

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11
Q

What is the change of state called from liquid to gas

A

Boiling

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12
Q

What is the change of state called from gas to liquid

A

Condensation

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13
Q

What is the change of state called from liquid to solid

A

Freezing

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14
Q

What is the change of state called from solid to liquid

A

Melting

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15
Q

What is the change of state called from a gas to a solid AND a solid to a gas

A

Sublimation

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16
Q

What is internal energy

A

Sum of Ke and Pe in a particle system

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17
Q

What is specific latent heat fusion

A

Energy needed to change the state of 1kg of the substance from solid to liquid without changing it’s temperature

18
Q

What is the formula for specific latent heat of fusion

A
19
Q

What is specific latent heat of vaporisation

A

Energy needed to change the state of 1kg of the substance from liquid to vapour without changing the temperature

20
Q

What is the formula for specific latent heat of vaporisation

A
21
Q

How is pressure caused

A

Pressure of a gas is caused by the random impacts of gas molecules on surfaces that are in contact with the gas

22
Q

How does the gas pressure increase when the temperature of a gas increases

A
23
Q

How can the temperature of a gas increase

A
24
Q

What is the formula that relates pressure,volume and constant

A
25
Q

Worked example of Pressure, volume and constant question

A
26
Q

What relates gas pressure and temperature

A

Gas pressure is directly proportional to temperature for a fixed volume of gas

27
Q

What is the formula that relates pressure force and area

A

Pressure= force/area

28
Q

What is boyle’s law

A

Pressure is inversely proportional to volume for a fixed temperature

29
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30
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31
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32
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33
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34
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35
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36
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37
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38
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39
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40
Q
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