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Chapter 3 Vocab I.S
Chapter 3 Solids Liquids and Gases Christina Smart PNHS
Question | Answer |
---|---|
What is the reversible physical change that occurs when a substance changes from one state to another? | Phase change. |
What State Of Matter has a definite shape and definite volume? | Solids. |
What State Of Matter has a definite volume but not a definite shape? | Liquids. |
What State Of Matter has neither a definite shape or volume? | Gases. |
What is the energy an object has to due to its motion? | Kinetic energy. |
What theory says that all particles of matter are in constant motion? | Kinetic theory. |
What is the result of a force distributed over an area? | Pressure. |
What factors affect gas pressure? | Factors that affect the pressure of an enclosed gas are its temperature, volume, and the number of particles. |
What law states that the volume of a gas is directly proportional to it's temperature is kelvins if the pressure and the number of particles of gas are constant? | Charles's law. |
What is the temperature of 0 K called? | Absolute Zero. |
What law states the volume of gas is inversely proportional to its pressure if the temperature and the number of particles are constant? | Boyle's law. |
What are the 6 common phase changes? | Melting,freezing,vaporization,condensation,sublimation, and deposition |
What happens during endothermic change? | The system absorbs energy from its surroundings. |
What happens during an exothermic change? | The system releases energy to its surroundings. |
Where does evaporation take place? | It takes place at the surface of a liquid and occurs at temperature below the boiling point. |
What is the process in which a substance changes from a liquid to a gas? | Evaporation. |
What is the process in which a substance changes from a gas or vapor to liquid? | Condensation. |
What is the process in which a substance changes from solid to a gas or vapor without changing into a liquid first? | Sublimation. |
What is the process in which a substance changes into gas or vapor directly into a solid without first changing into a liquid? | Deposition. |