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Questions and Answers
What happens to the movement of atoms/molecules when a substance is heated?
What happens to the movement of atoms/molecules when a substance is heated?
- They move faster (correct)
- They expand in size
- They move slower
- They remain stationary
What is the relationship between temperature and the speed of atoms/molecules?
What is the relationship between temperature and the speed of atoms/molecules?
- Temperature is a measure of the size of atoms/molecules
- Temperature and speed of atoms/molecules are unrelated
- Temperature and speed of atoms/molecules are inversely related
- Temperature is a measure of the average speed of atoms/molecules (correct)
What happens to the volume of a substance when it is cooled?
What happens to the volume of a substance when it is cooled?
- The volume is inversely proportional to the temperature
- The volume remains the same
- The volume decreases (correct)
- The volume increases
Which of the following statements about the atoms/molecules themselves is true?
Which of the following statements about the atoms/molecules themselves is true?
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What happens to the collisions between atoms/molecules when a substance is warmed?
What happens to the collisions between atoms/molecules when a substance is warmed?
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Which process occurs when molecules at the surface of a liquid gain enough energy to escape?
Which process occurs when molecules at the surface of a liquid gain enough energy to escape?
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What is the primary difference between evaporation and boiling?
What is the primary difference between evaporation and boiling?
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What happens to the temperature of a liquid during the boiling process?
What happens to the temperature of a liquid during the boiling process?
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Which factor affects the rate of evaporation?
Which factor affects the rate of evaporation?
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What provides the energy for molecules to escape the liquid during evaporation?
What provides the energy for molecules to escape the liquid during evaporation?
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