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31 Cards in this Set
- Front
- Back
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Describe Solids.
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1. Definate shape
2. Definate volume 3. particles packed tightly together and stay in a FIXED POSITION |
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Name some types of solids?
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Crystalline solids
Amorphous solids |
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What are crystaline solids like?
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Made up of crystals, that have a definite melting point
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What are amorphous solids?
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Do not have a specific melting point, particles are not arrange in a regular pattern
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Describe liquids?
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NO definate shape
DEFINATE VOLUME particles are free to move |
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What is viscosity?
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resistance to flowing
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Describe GASES.
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Changes volume easily
Takes up the shape of the spce it occupies Will fill ALL SPACE AVAILABLE |
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What is the amount of space that matter fills called?
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VOLUME
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What is the measure of the AVERAGE ENERGY OF MOTION of the particles of a substance.
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TEMPERATURE
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What is pressure?
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the force of the outward push divided by the area of the wall of the container.
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Which law related pressure and volume?
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Boyle's Law
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What did Boyles law state?
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When the pressure of a gas is increased at constant temperature, the volume of the gas decreases
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What does the law that relates pressure to temperatuare say?
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When the temperature of a gas of a constant volume is INCREASED, the pressure of the gas INCREASES
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What is the law that relates to pressure and temperature called?
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Raising Temperature Raises Pressure
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Which law relates volume and temperature?
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Charles' Law
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What does Chareles Law state?
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when the temperature of a gas increases at constant pressure , its volume increases
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What do we call diagrams that tell how two varibles, or factors are related?
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GRAPHS
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What does the graph of Charles's Law show?
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that the volume of gas is "Directly proportional" to its Kelvin temperature.
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What does the graph of Boyle's Law show?
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that the pressure of gas "Varies Inversely" with its volume at constant temperature.
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What is the energy that the particles of substance have,that are transferred from one substance to another as heat
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THERMAL ENERGY
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In thermal energy, how does the energy flow?
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warmer to cooler
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What are the changes between solid and liquid?
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Melting-from solid to liquid
Freezing -from liquid to solid |
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What are the changes between liquid and gas?
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Vaporization
Evaporation Boiling |
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What happens during vaporization
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Changes in a state from liquid to gas
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What happens during evaporation?
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Molecules escape into the air from the surface of the liquid
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What happens doing the boiling state?
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Inside a liquid as well as on the surface a type of vaporiztion takes place
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What is the boiling point?
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the specific temperatuare at which a substance boils
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How does air pressure effect boiling point?
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The lower the air pressure, the less energy required for molecules to escapte into the air.
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What is condensation?
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THE OPPOSITE OF VAPORIZATION; CHANGE IN STATE FROM GAS TO LIQUID
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What is SUBLIMATION?
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A CHANGE DIRECTLY FROM A SOLID TO A GAS.
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HOW DO YOU IDENTIFY SOME SUBSTANCES?
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through changes of state such as : melting point, boiling point, vapor point, etc. They ARE DISTINCt FOR SUBSTANCEs
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