6 Questions
Evaporation is the process that changes liquid water to solid water.
False
Evaporation occurs when energy (heat) forces the bonds that hold water molecules together to break.
True
Water easily evaporates at its boiling point (212° F, 100° C).
True
Evaporation is the opposite of condensation.
True
Condensation occurs when saturated air is heated.
False
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Study Notes
Evaporation
- Evaporation is the process that changes liquid water to gaseous water (water vapor)
- Water moves from the Earth’s surface to the atmosphere via evaporation
- Evaporation occurs when energy (heat) forces the bonds that hold water molecules together to break
- Evaporation requires heat energy to break the bonds holding water molecules together
Boiling and Evaporation
- Boiling water on the stove adds heat to liquid water, breaking the bonds and shifting the water to its gaseous state (water vapor), known as steam
- Water easily evaporates at its boiling point (212° F, 100° C)
Evaporation Rate
- Evaporation occurs more slowly at the freezing point due to the heat energy required to evaporate the water
Condensation
- Condensation is the process of water vapor turning back into liquid water
- Condensation occurs when saturated air is cooled, such as on the outside of a glass of ice water
Test your knowledge on evaporation and its causes with this quiz. Learn how energy impacts the transformation of liquid water into water vapor and why it occurs.
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