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7 Cards in this Set
- Front
- Back
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What is meant by condensing? |
The transition of a substance from a gas to a liquid |
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What is meant by boiling? |
The transition of a substance from a liquid to a gas |
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What is meant by freezing? |
The transition of a substance from a liquid to a solid |
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What is meant by melting? |
The transition of a substance from a solid to a liquid |
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Changing state-from solid to liquid |
When a solid is heated, its particles gain more energy. This makes them vibrate more, which weakens the forces that hold the solid together. At a certain temperature, called the melting point the particles have enough energy to break free from their positions. This is called melting and the solid turns into a liquid. |
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Changing state-from liquid to gas |
When a liquid is heated, the particles again get more energy. This energy makes them move faster, which weakens the attractive forces holding the liquid together. At a certain temperature, called the boiling point, the particles have enough energy to overcome the forces between them. This is boiling and the liquid becomes a gas. |
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Changing state-gas to liquid |
As a gas cools, the particles no longer have enough energy |
