Questions and Answers
Which change of state is shown in the model?
Which change of state is shown in the model?
What happens during evaporation?
A liquid changes to a gas.
During which changes of state does the motion of the atoms decrease?
Signup and view all the answers
During which changes of state do atoms overcome the attractive forces between them?
Signup and view all the answers
On a cool morning, Uyen's breath can form a cloud when she breathes out. Which changes of state are most responsible for Uyen seeing her breath in this way?
Signup and view all the answers
Rahul sees a flock of birds flying and landing. Which change of state does the motion of the birds most closely model?
Signup and view all the answers
Frieda makes a pyramid of oranges for a display. Which change of state does the motion of the oranges most closely model?
Signup and view all the answers
During which change of state would the volume of a substance increase the most?
Signup and view all the answers
The process by which a solid changes to a liquid is?
Signup and view all the answers
The process by which a gas changes to a solid is?
Signup and view all the answers
As atoms gain energy, they move faster and slide past one another. Which change of state is taking place?
Signup and view all the answers
Which arrow represents the change of state described where atoms gain energy?
Signup and view all the answers
Which arrow represents the change of state described where atoms lose energy?
Signup and view all the answers
Which change of state has the wrong energy change listed?
Signup and view all the answers
Which statement best describes the energy changes associated with evaporation and boiling?
Signup and view all the answers
How is energy related to the change of state represented by the model when gas changes to solid?
Signup and view all the answers
How is energy related to the change of state represented by the model when solid changes to liquid?
Signup and view all the answers
If atoms ______ energy during a change of state, they are pulled together by attractive forces and become more organized.
Signup and view all the answers
In which changes of state do atoms lose energy? Check all that apply.
Signup and view all the answers
Study Notes
Changes of State Overview
- Sublimation: The transition from solid to gas without passing through the liquid state.
- Deposition: The process where gas transforms directly into a solid.
Evaporation and Related Processes
- Evaporation: A liquid changes into a gas.
- Vaporization: Atoms overcome attractive forces and transition from liquid to gas.
Atom Motion and Energy Changes
- During freezing and condensation, the motion of atoms decreases.
- In contrast, during vaporization and sublimation, atoms gain enough energy to overcome attraction.
Observational Examples
- Uyen's breath forms a cloud due to vaporization and condensation with temperature changes.
- When birds land, their motion can be likened to deposition.
- The motion of spilled oranges resembles melting, implying a change from a structured arrangement to a disorganized state.
Volume Changes
- Sublimation results in the greatest increase in volume among the changes of state.
Specific Processes
- Melting: The transformation from solid to liquid.
- Deposition: The transformation from gas directly into a solid.
Energy Dynamics
- Atoms gain energy and move faster when a liquid transitions to a gas.
- Energy changes occur notably when transitioning between solid, liquid, and gas states:
- Atoms lose energy when gas changes to solid.
- Atoms gain energy when solid changes to liquid.
Energy Organization
- Atoms lose energy during certain changes, leading to more organized structural arrangements.
Identifying Changes of State
- Freezing, deposition, and condensation are key processes in which atoms lose energy.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge about the various changes of state with these flashcards. From sublimation to evaporation, you'll learn definitions and characteristics of each process. Perfect for students studying physical science concepts.
