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18 Cards in this Set
- Front
- Back
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viscosity
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a measure of the resistance of a liquid flow
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surface tension
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the energy required to increase the surface area of a liquid by a given mount
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crystalline solid
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a solid whose atoms, ions, or molecules are arranged in an orderly, geometric, three-dimensional structure
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atomic solid
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solids in which atoms of only 1 element are covalently bonded to each other.
ex: diamond, c-c bonds |
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ionic solid
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solids that are held together by oppositely charged ions.
ex: NaCl |
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molecular solid
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solids that are held together by molecules
ex: H2O |
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amorphous solid
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a solid in which the particles are not arranged in a regular, repeating pattern
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melting point of a crystalline solid
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the temperature at which the forces holding its crystal lattice together are broken and it becomes a liquid
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vapor pressure
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the pressure exerted by a vapor over a liquid
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boiling point
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the temperature at which the vapor pressure of a liquid equals the external or atmospheric pressure
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freezing point
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the point at which the temperature and pressure at which the three phases of a substance can coexist
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triple point
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the point at which the temperature and pressure at which the three phases of a substance can coexist
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critical point
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the critical pressure and critical temperature above which a substance can not exist as a liquid
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adhesive forces
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force of attraction between molecules that are different
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adhesive forces
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force of attraction between molecules that are different
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cohesive forces
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force of attraction between identical molecules
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diffusion
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the movement of one material through another from an area of higher concentration to an area of lower concentration
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effusion
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a gas escaping through a tiny opening
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