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53 Cards in this Set
- Front
- Back
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metastable
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stable if undisturbed, can occur in long lasting amourphus form
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hydrogen bond
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the attractive force b/w hydrogen atoms that is not a n actual chem. bond
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amorphus
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without crystalline form
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dynamic equilibrium
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two opposing charges are occuring at the same rate
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Kinetic Energy
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the amount of energy an object has because of its motion
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saturated
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when a substance in the vapor state it is said to be this
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enthalapy of fustion
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the energy req'd to melt one gram of a spec. substance
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hydrated ions
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ions that are chemically bonded to water molecules
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mesamorphic
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substances in liquid crystals
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vapor
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the gaseous state of substances that are lizuids or solids at rm. temp
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mean free path
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the avg. distance a molecurle travels before colliding with a molecule
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crystal
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a rigid body in which particles are arranged in units which form a repeating pattern
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body centered cubic
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centered in the middle
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plasma
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form of matter, ionized gas
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enthalapy of vaporization
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the energy req'd to vaporize one gram of a substance at its boiling point
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capillary
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a tube that has a hair thinb internal diameter
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pressure
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the force of collision with the walls of a container
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pascal
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the pressure of one newton per sq. meter
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hygroscopic
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looks wet, a substance with strong attraction for water
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phase diagram
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shows the states of matter in a system are affected by changes in temp and pressure
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doped
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adding impurities to form a semiconductor
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critical temp
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the temp at which no amt. of pressure will result in liquefying the gas
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simple cubic
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non centered
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capillary t
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the rising of water through a tube because of its attrractive force to the edges
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volatile
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a liquid that boils at a low temp and evaporates rapidly at rm. temp
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normal boiling point
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the temp at which vapor pressure is equal to standard atmospheric pressure
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dislocations
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errors in how the unit cells are joined
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liquid crystals
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some solids lose their crystal shape in one or two dimensions at the melt. pt. at spec. higher temps, the rest will be cestroyed and this is formed between the two temps
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liquefaction
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the condensation of substances that are normally gasses
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The standard
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101.35 kPa
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triple point
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all three states are in equilibrium at this temp
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sublime
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to change directly from a solid to a gas
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manomter
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an instrument to measure the thinness of a gass
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Anhydrous
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without water
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hexagonal closest packing
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type of packing found most frequently in metals at rm. temp
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space lattice
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the third arrangement of unit cells repeated over and over in a definite geometric arrangement
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face centered cube
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centered like the edges of a dice
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barometer
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a closed arm manometeer to mesure the heaviness of atmospheric pressure
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absolute zero
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the temp at which all molecular motion should stop
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cubic closest packing
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fcc same
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network crystal, macromolecule
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an entire crystal
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reversible change
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liquid > gas, liquid < gas,
Liquid<>gas |
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isomorphus
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crystals of diff. solids with same structure and shape
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viscosityh
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the resistance of a liquid to its flow
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unit cell
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the simplest repeating unit
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equilibrium
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there is a constant number of molecules in the solid or liquid or vaper phase
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polymorphus
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a single substance having 2 or more crystalline shapes
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kelvin scale
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a temp scale based on abs zero in which zero kelvin=abs zero
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deliquescent
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a subst. that is so hygroscopic that it takes up enough water from the air to dissolve and form a liquid solution
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Kinetic Theory
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Explains the effects of temp. and pressure on matter
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sublimations
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a substance which goes directly from solid to a gas
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surface tension
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apparent elasticity of a substance
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melting point
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the temp at which the vapor pressure of the solid and the vapor pressure of the lizuid are equal
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