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10 Cards in this Set
- Front
- Back
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What are solids? |
Solids consists of particles that are tightly held together in a fixed pattern. They can only make tiny vibrations, which results in solid being unable to move or vibrate properly. |
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What are liquids? |
Liquids are particles that can freely move and are closed together but not in a fixed pattern. The force that hold them together are weaker than a solid. |
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What are gases? |
Gases consist of particles that can freely move and be compressed. |
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What happens during melting? |
The particles would get more energy and vibrate more, and this would result in the solid expanding. The particles vibrate even more, which would result in the solid becoming a liquid. |
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What happens during boiling? |
The particles bounce off each other rapidly, creating heat energy. As they keep bumping off each other, they are able to overcome the forces holding them. Liquid then turns to gas. |
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What is evaporation? |
This is when some particles in a liquid have more energy than others, and it would result in some particles having enough energy to escape and form a gas. |
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What is condensation? |
When the gases are cooled and the particles lose energy. They move slower, and when they bump into each other, they don't have enough energy to bounce away again. This allows the gas to form a liquid. |
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How does gas pressure change with temperature? |
If the volume of gas is constant, the pressure increases with temperature. |
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What happens when gas pressure changes with volume? |
The pressure will increase, if the gas is squeezed into a smaller volume. |
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What happens when the pressure of the gas is constant? |
The volume will increase with temperature. |
