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Questions and Answers
What happens to the particles in the bigger balloon in the model?
What happens to the particles in the bigger balloon in the model?
- They move slower due to a loss of energy
- They stay still due to a lack of energy
- They vibrate in place
- They move faster due to a gain in energy (correct)
What causes evaporation to occur?
What causes evaporation to occur?
- A decrease in pressure
- A decrease in temperature
- Molecules in the liquid slowing down
- Molecules gaining enough energy to enter the gaseous state (correct)
What is the role of condensation in the phase changes from gas to liquid?
What is the role of condensation in the phase changes from gas to liquid?
- The liquid evaporates into the gas state
- The liquid solidifies into a solid
- Molecules slow down and become a liquid (correct)
- Molecules speed up and move into a gas state
What effect does temperature have on evaporation?
What effect does temperature have on evaporation?
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What is the boiling point of a substance defined as?
What is the boiling point of a substance defined as?
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What happens to the speed of particles when a substance is heated?
What happens to the speed of particles when a substance is heated?
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How does the volume of a substance change when it is cooled?
How does the volume of a substance change when it is cooled?
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Which statement best describes the movement of gaseous particles?
Which statement best describes the movement of gaseous particles?
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What is the relationship between temperature and the speed of particles?
What is the relationship between temperature and the speed of particles?
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What happens to the atoms/molecules of a substance when it is heated?
What happens to the atoms/molecules of a substance when it is heated?
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