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Questions and Answers
Which statement about evaporation is true?
Which statement about evaporation is true?
- Evaporation stops once the liquid starts boiling
- Evaporation only occurs at the surface of a liquid
- Evaporation requires the liquid to be at its boiling point
- Evaporation can occur at any temperature (correct)
What causes molecules to evaporate from the surface of a liquid?
What causes molecules to evaporate from the surface of a liquid?
- The molecules are moving fast enough to escape the liquid
- The liquid is at its boiling point
- Both a and b (correct)
- Air particles collide with the surface, providing energy for molecules to escape
Why does a drop of rubbing alcohol evaporate faster on your hand than on a table?
Why does a drop of rubbing alcohol evaporate faster on your hand than on a table?
- The alcohol molecules are more attracted to your skin
- Air particles collide with the alcohol more frequently on your hand
- Your hand is at a higher temperature than the table (correct)
- The alcohol molecules can escape the liquid more easily on your hand
What happens when a liquid boils?
What happens when a liquid boils?
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What is the boiling point of a substance?
What is the boiling point of a substance?
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What is the primary reason for condensation to occur on cool surfaces?
What is the primary reason for condensation to occur on cool surfaces?
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Which of the following is NOT an example of condensation mentioned in the text?
Which of the following is NOT an example of condensation mentioned in the text?
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What happens when the temperature drops during a common household activity like cooking?
What happens when the temperature drops during a common household activity like cooking?
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What is the primary process described in the text that helps maintain equilibrium in nature?
What is the primary process described in the text that helps maintain equilibrium in nature?
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Which of the following statements best describes the formation of dew?
Which of the following statements best describes the formation of dew?
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