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Chemistry > Thermochemistry 1 Quiz > Flashcards

Thermochemistry 1 Quiz Flashcards

1
Q

Temperature

A

The average kinetic energy of all the atoms or molecules of that substance

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2
Q

Kinetic energy

A

The energy an object has while in motion

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3
Q

Phase change

A

When matter goes from one state to another

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4
Q

System

A

A set of substances being studied

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5
Q

Surroundings

A

Everything that isn’t a part of the system - including surfaces & containers

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6
Q

Endothermic

A

Absorbing heat

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7
Q

Exothermic

A

Giving off heat

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8
Q

Heat

A

Energy transferring

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9
Q

Thermal equilibrium

A

One common temperature reached by the system & surroundings

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10
Q

The movement of energy in a liquid or gas in which hotter, less dense substances rise and cool less dense substances sink

A

Convection

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11
Q

Solid to liquid

A

Melting

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12
Q

Liquid to solid

A

Freezing

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13
Q

Gas to liquid

A

Condensation

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14
Q

Liquid to gas

A

Vaporization

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15
Q

Solid to gas

A

Sublimation

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16
Q

Gas to solid

A

Deposition

17
Q

Radiation

A

Photons (light) emitted from a source collide with particles from a substance

18
Q

Convection

A

Fluid particles (liquid or gas) from one substance collide with particles from another substance

19
Q

Conduction

A

Solid particles from one substance vibrate against particles from another substance at a boundary

20
Q

Heat

A

When energy is transferred from a higher to lower energy state

21
Q

Liquid to gas*

A

Endothermic, breaking bonds

22
Q

Gas to liquid*

A

Exothermic, forming bonds

23
Q

Solid to liquid*

A

Endothermic, breaking bonds

24
Q

Liquid to solid*

A

Exothermic, forming bonds

25
Q

What particles have the strongest IMFs?

A

Solid particles (slower moving, colder)

26
Q

What particles have the weakest IMFs?

A

Gas particles (fastest moving, hotter)

27
Q

Specific Heat

A

The amount of heat needed to raise

28
Q

Specific Heat

A

The amount of heat needed to raise 1g of a substance 1 degree Celsius

Chemistry (5 decks)

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