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Chapter 3 Vocab
3.1 and section 3.3 !
Question | Answer |
---|---|
Describe Kinetic Energy. | It's the energy an object in motion has. |
What are the particles in a liquid like? | Tightly packed together. |
What is a solid? | The state of matter with a definite shape and volume. |
How's a gas composed? | Does not have a definite shape, or a definite volume. |
What's deposition? | When a gas becomes a solid, before it becomes a liquid; it's deposition. |
How does condensation work? | It's an exothermic process; a phase change from a gas (vapor) to a liquid |
What's a phase change? | A reversible, physical change from one state of matter to another. |
What happens during an endothermic change? | The system absorbs energy from it's surroundings. |
What happens during an exothermic change? | The system releases energy to it's surroundings. |
True or false? The Heat of Fusion varies from substance to substance? | True. |
From what state of matter to what state of matter is vaporization? | Liquid to gas. |
What is heat of vaporization? | An endothermic process, a substance must absorb energy to go from liquid to gas. |
What is vapor pressure? | The pressure caused by the collisions of this water vapor on the top of a closed liquid and the walls of whatever the liquid's in. |
Definition of evaporation? | a process that changes a liquid to a gas at substances below the substance's boiling point. |
What's the phase changes of sublimation? | solid to gas or water vapor before becoming a liquid. |