States of matter
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States of matter. 3. Solid. Def. shape & volume Packed tightly Vibrations Crystals – pattern Amorphous – easily move. Liquid. Def. volume, not shape Further apart, movement! Fluid – substance that flows Surface tension – skin – pull toward Viscosity – resistance of a liquid to flow.

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States of matter

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States of matter

States of matter

3


Solid

Solid

  • Def. shape & volume

  • Packed tightly

  • Vibrations

  • Crystals – pattern

  • Amorphous – easily move


Liquid

Liquid

  • Def. volume, not shape

  • Further apart, movement!

  • Fluid – substance that flows

  • Surface tension – skin – pull toward

  • Viscosity – resistance of a liquid to flow


States of matter

gas

  • No def. shape/volume

  • Far apart, most movement


Changes in state

Changes in state

Solid - liquid

Liquid - solid

  • Melting – break free

  • 0 C

  • Freezing – begin forming patterns


Phase changes

Phase changes

Liquid - gas

Gas - liquid

  • Gains energy

  • Vaporization – def.

  • Boiling – within liq.

  • Evap – surface

  • Air pressure affects

  • 95 degrees C for Denver

  • Condensation

  • Loses thermal energy


Solid gas

Solid - gas

  • Sublimation – gains energy


Iii measuring gases

III measuring gases

  • Volume – cm3

  • Temp increase, increase motion of gas

  • 500 meters/sec. 2x that of a jet

  • Pressure – force on walls of container. Pascals


Pressure and volume

Pressure and volume

  • Boyles Law . Increase vol. decrease pressure

  • Helium balloon decrease air press, increase vol of balloon


Pressure and temp

Pressure and temp

  • Increase temp, increase pressure in constant volume (container that’s rigid)

  • Hot tires . . Expand.


Volume and temp charles law

Volume and temp – Charles’ Law

  • Charles Law – increase temp, increase vol.

    Decrease temp, decrease the volume of the gas. The molecules move closer together and take up less space.


Boyle s law

Boyle’s Law

  • It’s backwards!!! Meaning if you increase the volume, you decrease the pressure!!! Or, if you decrease the volume, you increase the pressure.


Graphing gas behavior

Graphing Gas Behavior

Temp (degrees C)Volume (mL)

050

1052

2054

3056

4058

5060

6062

7063

8066

9067

10069


Pressure and volume1

Pressure and Volume

  • Volume (mL)Pressure (kPa)

  • 30020

  • 25024

  • 20030

  • 15042

  • 10058

  • 50120


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