Specific latent heat

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  • Created by: Geeky123
  • Created on: 01-11-15 12:49
What does fusion mean?
the substance changes from a solid to a liquid
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What does freezing mean?
the substance changes from a liquid to a solid
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What does vaporisation mean?
the substance changes from a liquid into a vapour
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What does condensation mean?
the substance changes from a vapour to a liquid
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what happens when a substance is changing its state
the temperature of the substance remains constant.
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what is latent heat?
The heat energy that is taken in or given out by a substance when it changes state
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The specific latent heat of fusion?
it's the heat needed to change a mass of 1 kg the substance from a solid at its melting point into liquid at the same temperature.
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The specific latent heat of vaporisation?
is the heat needed to change the substance from a liquid at its boiling point into vapour at the same temperature.
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Specific latent heat of fusion and specific latent heat of vaporisation both have the same symbol?
it's measured in joules per kilogram. The heat energy Eh that is needed to change a mass m of liquid from at its boiling point into vapour at the same temperature is given by the following relationship.
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Other cards in this set

Card 2

Front

What does freezing mean?

Back

the substance changes from a liquid to a solid

Card 3

Front

What does vaporisation mean?

Back

Preview of the front of card 3

Card 4

Front

What does condensation mean?

Back

Preview of the front of card 4

Card 5

Front

what happens when a substance is changing its state

Back

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