19 - 20 Thermal Physics + Gases Definitions Flashcards

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1
Q

internal energy

A

the sum of the random distribution of kinetic and potential energies of molecules in a body

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2
Q

specific heat capacity

A

the energy required to increase the temperature of one kg of a substance by one Kelvin, without change in state

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3
Q

latent heat of fusion

A

the energy required to change the phase of a substance from solid to liquid with no change in temperature

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4
Q

specific latent heat of fusion

A

the energy required to change the phase of one kg of a substance from solid to liquid with no change in temperature

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5
Q

specific latent heat of vaporisation

A

the energy required to change the phase of one kg of a substance from liquid to gas with no change in temperature

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6
Q

melting point

A

the temperature at which a solid becomes a liquid

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7
Q

boiling point

A

the temperature at which a liquid becomes a gas

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8
Q

sublimation

A

the process by which a solid vaporises directly into a gas when heated

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9
Q

Boyle’s law

A

at a constant temperature, the pressure and volume of a gas are inversely proportional

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10
Q

Charles’ law

A

at a constant pressure, the volume and temperature of a gas are directly proportional

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11
Q

Pressure law

A

at a constant volume, the pressure and temperature of a gas are inversely proportional

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12
Q
A
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