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Intro to I.S.

Marisa-pnhs-intro to I.S. vocab

QuestionAnswer
What is a solid? A solid is the state of matter in which materials have a definite shape and a definite volume.
What is a liquid? A liquid is the state of matter in which material has a definite volume but not a definite shape.
What is a gas? Gas is the state of matter in which a material has neither a definite volume nor a definite shape.
What is kinetic energy? Kinetic energy is the energy an object has due to its motion.
What is pressure? Pressure is the result of a force distributed over an area.
What is absolute zero? A temperature of 0 K.
What is Charles's law? Charles's law states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles of the gas are constant.
What is Boyle's law? Boyle's law states that the volume of a gas is inversely proportional to its pressure if the temperature and the number of particles are constant.
What is a phase change? The reversible physical change that occurs when a substance changes from one state of matter to another.
What is endothermic? A chemical reaction that absorbs energy from its surroundings.
What is heat of fusion? The energy a substance must absorb in order to change from a solid to a liquid.
What is exothermic? A description of a change in which a system releases energy to its surroundings.
What is vaporization? The phase change in which a substance changes from a liquid into a gas.
What is heat of vaporization? The energy a substance must absorb in order to change from a liquid to a gas.
What is vaporization? The process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point.
What is vapor pressure? The pressure caused by the collisions of particles in a vapor with the walls of a container.
What is condensation? The phase change in which a substance changes from a gas or vapor to a liquid.
What is sublimation? The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first.
What is deposition? The phase change in which a gas or vapor changes directly into a solid without first changing into a liquid.
Created by: marisamoylan
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