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Questions and Answers
What is the main difference between evaporation and boiling?
What is the main difference between evaporation and boiling?
- Boiling is faster than evaporation.
- Evaporation only occurs at high temperatures, while boiling can occur at any temperature.
- Evaporation requires more energy than boiling.
- Evaporation only occurs at the liquid's surface, while boiling happens throughout the liquid. (correct)
Why does a drop of rubbing alcohol evaporate faster on your hand than on the table?
Why does a drop of rubbing alcohol evaporate faster on your hand than on the table?
- The rubbing alcohol molecules are slower on the table surface.
- The temperature of your hand is higher, leading to faster evaporation. (correct)
- Your hand absorbs the rubbing alcohol molecules.
- Rubbing alcohol evaporates faster in the air.
At what point does a liquid reach its boiling point?
At what point does a liquid reach its boiling point?
- When the liquid cools down significantly.
- When all the molecules at the liquid's surface escape.
- When the liquid turns to a solid.
- When molecules throughout the liquid gain enough energy to change to a gas. (correct)
Why does evaporation occur more rapidly at higher temperatures?
Why does evaporation occur more rapidly at higher temperatures?
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What happens to a liquid's temperature during boiling?
What happens to a liquid's temperature during boiling?
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