P6 Kinetic Theory Flashcards

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1
Q

What is solid to gas

A

Sublimation

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2
Q

What is gas to solid

A

Desublimation or deposition

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3
Q

What is solid to liquid

A

Melting

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4
Q

What is liquid to solid

A

Freezing

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5
Q

What is gas to liquid

A

Condensation

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6
Q

What is liquid to gas

A

Sublimation/ evaporation

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7
Q

What is the definition of a pure substance

A

A substance that only contains one type of atom or molecule

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8
Q

What is the equation for that includes Latent heat

A

Energy required to change state = latent heat x mass

E = L x m

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9
Q

What is the definition of specific heat capacity

A

The amount of energy required to raise the temperature of 1kg of a substance by 1 degree C

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10
Q

What is the equation that includes specific heat capacity

A
Energy = mass x specific heat capacity x change in temperature
E = m x c x ๐Ÿ”บt
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11
Q

Equation for internal energy

A

Internal energy = kinetic energy + potential energy

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12
Q

What types of energy do gas particles have the most of due to their state

A
Kinetic energy ( how fast they move ): gas particles move the fastest
Potential energy ( position of particles and how much space they have ): gas particles and most spread out
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13
Q

What happens to the energy when a substance changes state

A

( depending on direction of state change ) the potential energy of a substance changes e.g liquid -> gas = more potential energy

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14
Q

When does a substance gain more kinetic energy

A

When the temperature increases

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15
Q

What does the horizontal line mean on the cooling curve

A

It means when a substance is melting or evaporating and changing itโ€™s potential energy

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16
Q

What do the climbing lines represent on the cooling curve

A

They represent a state of the substance ( S,L,G ) and when they change kinetic energy

17
Q

What is brownian motion

A

When particles in a gas move randomly

18
Q

What is the equation for density

A

ฯ = m/v density = mass/ volume

19
Q

What is the equation including pressure, volume and a constant

A

Pressure x volume = constant p x v = constant

20
Q

What is the equation for pressure and volume before and after

A

P1 x V1 = P2 x V2

21
Q

What is the relationship between pressure and volume in a gas

A

When the volume increases, the pressure will decrease ( same for the other way round )