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Q1 Chemistry
States of Matter
| Question | Answer |
|---|---|
| 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
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