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9 Cards in this Set
- Front
- Back
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What is condensation?
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When a gas turns to a liquid
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How does condensation happen?
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1) When a gas cools, the particles slow down and lose energy
2) If it gets cool enough and the particles get close enough, the gas becomes a liquid |
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When does water vapour condense?
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When it comes into contact with cold surfaces
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What is evaporation?
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When a liquid turns to a gas
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Can particles escape from a liquid at a lower temperature than it's boiling point?
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Yes
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Which particles escape from a liquid?
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Particles near the surface that:
Are travelling in the right direction Are travelling fast enough to overcome the attractive forces of other particles |
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Which particles are most likely evaporate from a liquid?
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The fastest particles
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What happens when particles escape from a liquid?
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The average speed and kinetic energy of the remaining particles decrease
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What happens to a liquid after the average speed and kinetic energy of the remaining particles decrease?
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It cools
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