Ch2: Kinetic Particle Theory Flashcards

1
Q

Arrangement, attractive forces, kinetic energy, particles movement, shape, volume of liquid

A

Closely packed in a disorderly manner, less strong attractive forces between particles, low, slide past one another freely throughout the liquid, definite, indefinite

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2
Q

Arrangement, attractive forces, kinetic energy, particles movement, shape, volume of solid

A

Very closely packed in an orderly manner, very strong, very low, vibrate and rotate about fixed positions, definite, definite

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3
Q

Arrangement, attractive forces, kinetic energy, particles movement, shape, volume of gas

A

Very far apart in a disorderly manner, very weak, high, move quickly and randomly in any direction, indefinite, indefinite.

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4
Q

Kinetic particle theory states that all matter is…

A

All matter is made up of tiny particles

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5
Q

Why is the graph constant at ….. in a heating curve?

A

Energy from heating is used to overcome forces of attraction between the particles. The temperature remains constant until all _____ has melted

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5
Q

Particles are in

A

Constant and random motion

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6
Q

Why is the graph constant at ____ in a cooling curve?

A

The particles lose energy to surroundings and temp. Is at freezing point. Particles with less energy are drawn closer together by the forces of attraction between them. Temp. Remains constant until all ____ has solidified.

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7
Q

When temp. Increases, what happens to rate of diffusion?

A

Increases. Kinetic energy increases upon heating

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8
Q

Why does the temperature remain constant when a substance experiences changing from gas to liquid?

A

Heat energy is released/given out to the surroundings as the particles are drawn closer together by the force of attraction between them. Heat energy is released even as the particles in the gas are losing kinetic energy, thus temperature remaining constant.

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9
Q

Why does the temperature remain constant when a substance experiences changing from liquid to gas?

A

Heat energy is ahsorbed to overcome intermolecular forces of attraction between the particles.

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