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- Yes, this is called evaporation. The heat from the sun is causing the particles to spread out even further and have no attraction! Gas particles rarely meet and have a very high kinetic energy.
- The puddle is getting smaller!
- The puddles gone!
- Also remember that a gas has an indefinite volume and shape and moves freely. I'll see you both soon but now I must return to Gaslandia.
- Particles in a Gas
- The snowman is a solid. The particles are tightly packed and are vibrating in place. No heat is being added to a solid and it cannot flow easily. It also has a definite shape and volume.
- Let's recap!!
- Once heat is added to a solid a phase change occurs which is melting. Liquids have an indefinite shape and definite volume. The particles are more spread out but still have some attraction and can flow.
- When more heat is added to a liquid evaporation occurs. The particles are now very far apart and rarely meet. The particles have the highest kinetic energy so it moves in all directions. A gas has both an indefinite volume and shape.
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