callahan-pnhs-Solids, Liquids, and Gas
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Name the properties of a solid. | Materials have a definite shape and a definite volume.
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| Name the properties of a liquid. | A material has a definite volume but not a definite shape.
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| Name the properties of a gas. | A material has neither a definite shape nor a definite volume.
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| What is kinetic energy and what does it mean in Greek? | It is the energy an object has due to its motion and it means "to move" in Greek.
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| What is the result of a force distributed over an area? | It is pressure.
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| At what temperature is absolute zero? | A temperature of 0 K.
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| What does Charles's law state? | That the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles of a gas are constant.
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| What does Boyle's Law state? | That the volume of a gas is inversely proportional to its pressure if the temperature and the number of particles are constant.
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| What is a reversible physical change that occurs when a substance changes from one state of matter to another? | A phase change.
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| What happens during an endothermic change? | The system absorbs energy from its surroundings.
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| What is the heat of fusion? | The energy a substance must absorb in order to change from a solid to a liquid.
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| What happens during an exothermic change? Give an example. | The system releases energy to its surroundings. Ex: Freezing.
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| What is vaporization? | The phase change in which a substance changes from a liquid into a gas.
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| What is heat of vaporization? | It is the energy a substance must absorb in order to change from a liquid to a gas.
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| Explain the process of evaporation. | Evaporation is the process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point.
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| What is the pressure caused by the collisions of particles in a vapor with the walls of a container? | Vapor pressure.
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| What is condensation? Give an example. | It is the phase change in which a substance changes from a gas or vapor to a liquid. Ex: Morning dew on blades of grass.
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| What is the phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first? | Sublimation.
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| What is the phase change of deposition? | When a gas or vapor changes directly into a solid without first changing to a liquid.
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Created by:
Jordan Callahan
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