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Q1 Chemistry

States of Matter

QuestionAnswer
The most energetic state of matter is ___ Gas
The least energetic state of matter is ___ Solid
State of matter with random, rapid motion independent of other parts Gaseous State
State of matter with motion that slides past each other Liquid State
State of matter with motion that vibrates around fixed positions Solid State
The measure of the amount of disorder/randomness Entropy
The quantity of heat that is absorbed to convert one gram of a solid to one gram of a liquid at the substances melting point Heat of Fusion
What is the heat of fusion for water? 80 Calories per gram
The amount of heat necessary to change one gram of a substance from a liquid to a gaseous state at the substances boiling point 540 Calories per gram
A process that liberates heat Exothermic
A process that absorbs heat Endothermic
A change in state directly from a solid to a gas Sublimation
The freezing point of water (Fahrenheit) 32 degrees F
The boiling point of water (Fahrenheit) 212 degrees F
The freezing point of water (Celsius) 0 degrees C
The boiling point of water (Celsius) 100 degrees C
The freezing point of water (Kelvin) 273 degrees K
The boiling point of water (Kelvin) 373 degrees K
What is absolute zero? 0 degrees Kelvin
Volume decreases as pressure increases is called ___ Compressibility
Gas expands and results in an increase in volume is called ___ Expansivity
Gas diffusing in a container is called ___ Diffusibility
Law: Volume goes down and pressure goes up, P1xV1=P2xV2 Boyle's Law
Law: Temperature goes up and volume goes up, V1/T1=V2/T2 Charles Law
Law: Temperature goes up and pressure goes up, P1/T1=P2/T2 Gay-Lussac's Law
Substances that cannot be decomposed by further chemical means (Helium, Carbon, etc) Elements
Substance composed of two or more elements chemically united in a definite proportion by mass (h2o) Compounds
Substance composed of two or more nonchemically united substances that are in no definite proportion by mass (salad) Mixtures
Law: When two or more elements combine, they always combine in a fixed or definite proportion by mass Law of Definite Proportions
A mixture that has uniform composition throughout Homogenous
A mixture that does not have uniform composition throughout Heterogenous
Created by: amber.whalen