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Matter and Energy

Matter and Energy Vocabulary

QuestionAnswer
physical property The properties of matter that we observe with our senses.
extrinsic properties Depends on the amount of matter present. Mass, volume, and energy are examples of extrinsic properties.
intrinsic properties Do not depend on the amount of matter present in the sample. Color, melting point, density, boiling point, hardness, and electrical conductivity are all intrinsic properties.
compressible A solid that will take up the container it is in.
phase barriers Point at which phases change.
condensation point Temperature where a gas becomes a liquid
freezing point Temperature where a liquid becomes a solid
melting point Temperature where a solid becomes a liquid
boiling point Temperature where a liquid becomes a gas
sublimation Evaporation of a substance directly from solid to a gas without melting or going through the liquid phase.
deposition Condensation of a substance directly from a vapor to a solid without going through the liquid phase
density Mass per unit volume of a substance
polarity It affects the interaction of gases. Substances that are gases at room temperature are most often stand-alone atoms, diatomic molecules or small, nonpolar molecular compounds.
volatile compound These compounds tend to vaporize.
volume Consists of the amount of space that an object takes up.
pressure Amount of force applied on a given surface area.
directly proportional One quality increases, so does the related quantity.
inversely proportional The relationship in Boyle’s law
internal energy Force holding atoms together with other atoms to form molecules. They possess internal energy
exothermic reaction They release thermal energy.
endothermic reaction Heat energy is absorbed
activation energy The energy to start a reaction
catalyst Increase the rate of a reaction
Created by: brooklynwilliams
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