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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?
What is the boiling point of a substance?
What is the boiling point of a substance?
What is the primary reason for condensation to occur on cool surfaces?
What is the primary reason for condensation to occur on cool surfaces?
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?
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?
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?
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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