specific latent heat
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15 Terms
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Latent heat
The energy required or released when a substance changes state
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What temperature do changes of state occur at?
At fixed temperatures
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Specific latent heat
The amount of energy required to change the state of one kilogram (1 kg) of the substance with no change in temperature
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Specific latent heat of fusion
The energy required when a substance changes from a solid to a liquid (or the energy released when a substance changes from a liquid to a solid)
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Specific latent heat of vaporisation
The energy required when a substance changes from a liquid to a gas (or the energy released when a substance changes from a gas to a liquid)
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E \= mL
The equation linking energy (for a change of state), mass and specific latent heat
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E
The symbol for energy
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m
The symbol for mass
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L
The symbol for specific latent heat
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Joules (J)
The SI unit for energy and work
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Kilograms (kg)
The SI unit for mass
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Joules per kilogram (J/kg)
The SI unit for specific latent heat
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How does changing the internal energy of a substance affect it?
The substance will change temperature or change state
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What does the specific heat capacity of a substance tell us ?
The energy required (per kilogram) for the substance to change temperature
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What does the specific latent heat of a substance tell us ...
The energy required (per kilogram) for the substance to change state
Note 
Flashcards (34)