chapter 13 chem
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| show | kinetic
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| show | kinetic theory
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| what are Three assumptions are made regarding the kinetic theory and gases | show 🗑
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| show | mass and velocity
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| show | velocity
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| show | All particles have the same mass
All particles do not have the same velocity
Do not have same KE
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| show | temperature
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| show | gas pressure
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| show | The gas pressure is a result of billions of rapidly moving particles in a gas simultaneously colliding with an object
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| Force per unit area | show 🗑
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| show | atmospheric pressure
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| how does atmospheric pressure vary at different points of the earth | show 🗑
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| If there are no particles present then no collision can occur. So there is no pressure, the result is a ________ | show 🗑
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| show | vacuum
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| show | because gravity holds particles in air within Earth’s atmosphere
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| show | atmospheric pressure
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| show | density
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| device used to measure atmospheric pressure | show 🗑
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| show | Pascal (Pa)
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| _______________ and ___________ are also used as measurements of pressure | show 🗑
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| ____ atm = _____ mmHg = _____ kPa | show 🗑
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| What properties of gases make it possible for an air filled flotation device to work? | show 🗑
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| compares mass of an object to its volume | show 🗑
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| show | compress
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| show | expansion
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| show | Random motion
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| Movement of one material through another | show 🗑
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| in diffusion, there is a Movement from an area of ________ concentration to an area of ______ concentration | show 🗑
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| in diffusion, Heavier particles are ______ Light particles are _____ | show 🗑
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| show | effusion
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| show | effusion rate; molar mass
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| show | liquid
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| show | fixed
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| ____________ between liquid particles limit their range of motion | show 🗑
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| The density of a liquid is much ________ than that of its vapor at the same conditions | show 🗑
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| why is the density of liquid water and steam different | show 🗑
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| Change in volume is much ______ in a liquid than a gas | show 🗑
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| show | compressed
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| show | pressure
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| show | fluidity
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| liquid_______ more slowly than a gas at the same temperature | show 🗑
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| liquid is less fluid than gas give an example | show 🗑
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| show | viscosity
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| viscosity is Determined by the type of _______ ______ involved, the _______ __ ____ _______, and the _______ | show 🗑
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| show | higher
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| show | decreases
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| show | when you heat up syrup it becomes easier to pour
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| Intermolecular forces _______ have an equal effect on all particles in a liquid | show 🗑
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| what are particles in the middle of a liquid attracted to | show 🗑
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| what are particles on the surface of a liquid attracted to | show 🗑
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| The stronger the attractions between particles, the _______ the surface tension | show 🗑
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| show | cohesion
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| show | adhesion
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| The movement of a liquid upward | show 🗑
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| show | Example: Paper towels and diapers
Water is drawn into the narrow spaces between the cellulose fibers by capillary action
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| conversion of liquid to gas | show 🗑
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| show | evaporation
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| During evaporation only the molecules with a certain ______ ________ ______ can escape the surface of the liquid | show 🗑
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| show | vapor pressure
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| conversion of gas to liquid | show 🗑
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| show | boiling point
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| show | 101.3 kPa
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| Change in altitude affects the boiling point because atmospheric pressure is_______ at higher temperatures | show 🗑
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| show | 95 C
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| show | kinetic energy
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| show | In a solid there are strong attractive forces between particles These forces limit the movement to vibrations in a fixed location Particles are packed closer together
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| temperature at which a solid turns into a liquid | show 🗑
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| temperature at which a liquid turns into a solid | show 🗑
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| show | crystal lattice
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| show | unit cell
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| show | allotropes
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| Solid in which the particles are not arranged in a regular repeating pattern ; lacks an ordered structure | show 🗑
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| when do amorphous solids form usually? | show 🗑
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| Phase changes that require energy | show 🗑
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| show | Heat flows from the water to the ice
Heat- transfer of energy from an object at a higher temp to an object at a lower temp
Energy breaks the hydrogen bonds and causes the ice to enter its liquid phase
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| Temperature at which the forces holding a crystal lattice together are broken and becomes a liquid | show 🗑
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| show | vaporization
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| show | evaporation
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| show | increases
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| Pressure exerted by a vapor over a liquid (closed container) | show 🗑
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| Temperature when the vapor pressure of liquid equal s the atmospheric pressure Molecules have enough energy to vaporize | show 🗑
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| Process by which a solid changes directly to a gas | show 🗑
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| show | Solid iodine
Solid carbon dioxide(dry ice)
Solid air fresheners
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| show | Condensation
Deposition
Freezing
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| The process by which a gas or a vapor becomes liquid Reverse of vaporization Loses energy, velocity is reduced | show 🗑
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| Process by which a substance changes from a gas or vapor to a solid without becoming a liquid first Reverse of sublimation Example: snowflakes | show 🗑
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| Heat is removed, molecules lose KE and their velocity decreases When enough energy has been removed, the molecules will stay in fixed position | show 🗑
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| show | freezing point
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| show | phase diagrams
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| The point on a phase diagram that represents the temperature and pressure at which three phases of a substance can coexist | show 🗑
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| what happens to boiling point when you reach higher altitudes? | show 🗑
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jackjack109