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Questions and Answers
Evaporation only occurs when molecules at the surface of a liquid gain enough energy to enter the gaseous state.
Evaporation only occurs when molecules at the surface of a liquid gain enough energy to enter the gaseous state.
True
Boiling happens when molecules throughout the liquid gain enough energy to enter the gaseous state.
Boiling happens when molecules throughout the liquid gain enough energy to enter the gaseous state.
True
Evaporation can only occur at high temperatures.
Evaporation can only occur at high temperatures.
False
When a liquid boils, it remains at the same temperature until all molecules turn into a gas.
When a liquid boils, it remains at the same temperature until all molecules turn into a gas.
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Condensation is the process of molecules in the liquid state becoming a gas.
Condensation is the process of molecules in the liquid state becoming a gas.
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Evaporation can occur at any temperature.
Evaporation can occur at any temperature.
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The warmer something is, the faster condensation occurs.
The warmer something is, the faster condensation occurs.
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Boiling occurs when molecules throughout the liquid gain enough energy to enter the gaseous state.
Boiling occurs when molecules throughout the liquid gain enough energy to enter the gaseous state.
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The boiling point is the temperature at which molecules throughout the liquid can change to the gaseous state.
The boiling point is the temperature at which molecules throughout the liquid can change to the gaseous state.
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When a liquid boils, it remains at the same temperature until all molecules turn into a gas.
When a liquid boils, it remains at the same temperature until all molecules turn into a gas.
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Condensation is the process of gas molecules slowing down and becoming a liquid.
Condensation is the process of gas molecules slowing down and becoming a liquid.
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Water droplets form on the outside of a glass on a hot day due to evaporation.
Water droplets form on the outside of a glass on a hot day due to evaporation.
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Study Notes
Evaporation
- Occurs when surface molecules of a liquid gain sufficient energy to transition to a gaseous state.
- Can take place at any temperature, not limited to high temperatures.
- Evaporation rate increases with higher temperatures.
Boiling
- Happens when molecules throughout the liquid acquire enough energy to become gas.
- Characterized by a constant temperature, known as the boiling point, until the entire liquid turns to gas.
- The boiling point is the specific temperature at which a liquid's molecules can change to a gaseous state.
Condensation
- Involves gas molecules losing energy and transitioning to a liquid state.
- This process occurs faster at warmer temperatures.
- Water droplets can form on a glass on a hot day due to the evaporation of moisture in the air and subsequent condensation as temperature changes.
Key Processes Comparison
- Evaporation affects only surface molecules and is gradual, while boiling affects the entire liquid and occurs rapidly.
- Both evaporation and condensation are essential parts of the water cycle and other natural processes.
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Description
Test your knowledge on the concepts of evaporation and boiling. Learn about the process of molecules transitioning from liquid to gas states and the factors affecting their speed. Understand the differences between evaporation and boiling.
