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Chapter 3
Owens-PNHS-States of Matter
| Question | Answer |
|---|---|
| What state of matter has a definite volume and shape? | Solids, they have a definite shape and volume. |
| What state of matter has a definite volume but not a definite shape? | Liquids, definite volume but not a definite shape. |
| What state of matter has neither a definite shape or volume? | Gases, no definite shape or volume. |
| What is the energy and object has due to it's motion. | Kinetic energy |
| What is pressure and what are factors that affect it? | Pressure is force distributed over a certain area. Temperature, volume and number of particles all affect pressure. |
| What measurement is absolute zero? (C,F,K) | Kelvin, absolute zero is zero degrees kelvin. |
| Who was Jacques Charles and what was his law? | He was a french physicist and his law said that gas is proportional to its temperature in Kelvin if pressure and # of particles is constant. |
| Who was Robert Boyle and what did his law state? | Robert Boyle was born in Ireland in 1627 and his law said that gas is inversely proportional if temperature and # of particles are constant. |
| How many phase changes are there and what is a phase change? | A phase change a reversible physical change that occurs because of a change in state of matter and there are six common phase changes. |
| What phase change does the system absorb energy from its surroundings? | Endothermic phase change |
| What type of energy absorbs energy as it melts? | Heat of Fusion |
| What change releases energy to its surrounding? | Exothermic phase change |
| What phase change changes a substance from a liquid to a gas? | Vaporization |
| What is the energy when vaporization occurs? | Heat of vaporization |
| Where does evaporation occur and at what temperature? | It takes place at the surface of a liquid and occurs below boiling point. |
| Define vapor pressure | Vapor pressure is caused by collisions of vapor and walls of the container it is in. |
| What is the phase change when a gas changes to a liquid? | Condensation |
| What type of phase change is sublimation? | Sublimation is the phase change when a substance changes from a solid to a gas, |
| Define deposition. | Deposition is the phase change when a substance changes directly from a gas to a solid. |
Created by:
billyo
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