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Science > 1123 > Flashcards

1123 Flashcards

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1
Q

Random movement of microscopic particles resulting from collision with molecules

A

Brownian motion

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2
Q

Movement of a liquid up or down a tube because of adhesion

A

Capillarity

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3
Q

Gradual mixing of two gases due to spontaneous, random motion

A

Diffusion

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4
Q

Total kinetic energy of all the molecules of a solid

A

Heat

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5
Q

Amount of heat required to raise the temperature of a substance 1°C

A

Heat capacity

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6
Q

Additional heat required to melt a substance at its melting point

A

Heat of fusion

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7
Q

Additional heat required to vaporize a substance at its boiling point

A

Heat of vaporization

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8
Q

Energy of motion

A

Kinetic energy

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9
Q

Energy of position

A

Potential energy

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10
Q

Amount of heat required to raise the temperature of 1 g of a substance 1°C

A

Specific heat

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11
Q

Average kinetic energy of the molecules of a substance

A

Temperature

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12
Q

Process used to examine the crystal structure of a solid

A

X-ray diffraction

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13
Q

Attraction between molecules of two substances in contact with each other

A

Adhesion

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14
Q

One of the different forms of a polymorphous crystalline solid

A

Allotrope

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15
Q

The type of solid in which the particles have no crystals

A

Amorphous

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16
Q

Molecular force of a traction for other molecules within the same substance

A

Cohesion

17
Q

A solid consisting of particles are arranged in an orderly repeating geometric pattern

A

Crystal

18
Q

Gradual escape of a gas through a small opening in its container

A

Effusion

19
Q

Collision in which particles do not lose energy

A

Elastic

20
Q

Pressure of a gas in a state of equilibrium with its liquid

A

Equilibrium vapor pressure

21
Q

SI unit of measurement for heat

A

Joule

22
Q

Concave depression on the surface of a liquid

A

Meniscus

23
Q

Unit of measurement for pressure

A

Pascal

24
Q

A type of solid in which the particles occur own more than one Crystal pattern

A

Polymorphous

25
Q

Ability of a liquid to resist flowing

A

Viscosity

26
Q

Law: The total pressure of a mixture of gases is equal to the sum of the partial pressures of each component gas

A

Dalton’s law of partial pressures

27
Q

Law: Under conditions of constant temperature and pressure, the ratios of the volumes of gases at reactor small whole numbers

A

Gay-Lussas law of combining volumes

28
Q

Law: The volume of a gas is directly proportional to its absolute (kelvin) remains constant

A

Charles’ law

29
Q

Law: under conditions of constant temperature and pressure, equal volumes of gases contain equal numbers of molecules

A

Gay-Lussac’s law

30
Q

Law: The volume of a gas is inversely proportional to the pressure applied to it if the temperature remains constant

A

Boyles law

31
Q

Law: under conditions of equal temperature and pressure, the rates of a fusion or diffusion of two gases are inversely proportional to the square root of their molar masses

A

Grahams law of effusion/diffusion

32
Q

What exist when to opposing chemical or physical changes occur at equal rights in a closed system

A

Equilibrium

33
Q

What makes the surface of a liquid flat and pools a droplet into a sphere

A

Surface tension

34
Q

What forces within a liquid causes viscosity

A

Cohesive

35
Q

What of a crystal is caused by the attraction and repulsion of electrically charged particles within the Chrystal

A

Pattern

36
Q

According to the kinetic theory of gases, gas molecules move rapidly, randomly, and constantly in straight line paths in any

A

Direction

37
Q

The Kelvin scale represents the what temperature, and it’s degrees are always expressed as what numbers

A

Absolute… Positive

Science (4 decks)

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