Kinetic   Model   of   Matter CHANG, FANG-HSIN @ EDISON CHANG   PGDE (Sec), July 2006
Kinetic   Model   of   Matter By the end of this lesson, you should be able to: <ul><li>1. Use  Kinetic Model of Matter  t...
Part One
CAN YOU SEE? m a croscopic m i croscopic
CAN YOU SEE? m a croscopic m i croscopic
What is this  stuff  ?   What is the  Matter   ?
Matter  =   things ,  ‘ stuff’   and… YOU
What is  Matter  ? What are   YOU   made of ?
Mobile Phone Model to represent the real thing =
Scientific Model   =  solid to represent the real thing
Scientific Model   to represent the real thing =  water   molecule =
Matter  can   MOVE   Brownian Motion How do we know? Here is the proof  
random  movement of  Liquid  or  Gas   molecules Brownian Motion Matter  can   MOVE
Dead Cells Brownian Motion Matter  can   MOVE   http://www-micro.msb.le.ac.uk/video/brownian.mov get pushed around by
Matter  can  MOVE   + = Kinetic Energy
Kinetic   Model   of   Matter Matter   is made of  moving   molecules
Name  3   States   of   Matter
Name  3   States   of   Matter Gas Liquid Solid
Kinetic   Model   of   Matter =  Gas =  flowing  water molecule
Kinetic   Model   of   Matter =  Liquid =  flowing  water molecule
Kinetic   Model   of   Matter =  Solid =  vibrating  water molecule
Hold on a second!
Are you telling me that  ICE CUBES   are actually  vibrating  ?
!!! YES !!! Are you telling me that  ICE CUBES   are actually  vibrating  ?
WHY ?
CAN YOU SEE? m a croscopic m i croscopic
CAN YOU SEE? m a croscopic m i croscopic
m a croscopic Can you see ice cubes   vibrate  when they are becoming   flowing   water ?
m a croscopic Can you see ice cubes   vibrate  when they are becoming   flowing   water ? NO
vibrating m a croscopic m i croscopic flowing But are ice cubes actually   vibrating   when they are becoming  flowing  wa...
vibrating m a croscopic m i croscopic flowing But are ice cubes actually   vibrating   when they are becoming  flowing  wa...
During  melting ,  ice cubes are  vibrating   to break the  attrative force that  holds  water molecules  together to beco...
Part Two
Kinetic   Model   of   Matter
Kinetic   Model   of   Matter
Who is HOT ???
100  °C 0 °C
Who is HOT ???
Higher Temperature
Kinetic   Model   of   Matter ?   Kinetic Energy  ?
Kinetic   Model   of   Matter
Kinetic   Model   of   Matter ?   Attractive Force  ?
Kinetic   Model   of   Matter
Kinetic   Model   of   Matter ?  Motion  ?
Kinetic   Model   of   Matter Vibrate Flow at  fixed  position Slow Fast all over the place
Kinetic   Model   of   Matter ?   Shape   ?
Kinetic   Model   of   Matter Fixed Changing with the shape of container
Kinetic   Model   of   Matter ?   Distance between Molecules   ?
Kinetic   Model   of   Matter
Kinetic   Model   of   Matter ?  Can be  Compressed   ?
Kinetic   Model   of   Matter NO NO YES! ?  Can be  Compressed   ?
Liquid  Nitrogen Gas  Nitrogen 25 ° C -72 ° C COMPRESS
 
Liquid  Nitrogen Gas  Nitrogen 25 ° C -72 ° C DECOMPRESS
 
LIVE
 
Hand burnt by Liquid Nitrogen
 
Large  Volume Small  Volume COMPRESS CO 2
Large  Volume Small  Volume DECOMPRESS CO 2
Large  Volume Small  Volume DECOMPRESS HOW? CO 2
Large  Volume Small  Volume DECOMPRESS
DECOMPRESS ? CO 2
DECOMPRESS ? <ul><li>Speed ?  </li></ul><ul><li>Volume ? </li></ul>CO 2
LIVE +
DECOMPRESS ? <ul><li>Speed  Faster </li></ul><ul><li>Volume  Larger </li></ul>CO 2
Pressure Speed   of  molecular motion
http://eepybird.com/exp214.html You’ve seen nothing yet!
Homework Play Gas Law Program   to find out the relationships between: Pressure Molecular Motion V.S Molecular Motion V.S ...
http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm Gas Law Program
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  • Kinetic Model of Matter

    1. 1. Kinetic Model of Matter CHANG, FANG-HSIN @ EDISON CHANG PGDE (Sec), July 2006
    2. 2. Kinetic Model of Matter By the end of this lesson, you should be able to: <ul><li>1. Use Kinetic Model of Matter to: </li></ul><ul><ul><li>compare the physical properties ; and </li></ul></ul><ul><ul><li>decribe the molecular structure </li></ul></ul><ul><ul><li>of the three states of matter: Gas , Liquid and Solid . </li></ul></ul><ul><li>2. Understand that Brownian Motion proves Kinetic Model of Matter . </li></ul><ul><li>3. Describe the relationship between temperature and molecular motion . </li></ul><ul><li>4. Explain pressure of a gas in terms of its molecular motion . </li></ul>
    3. 3. Part One
    4. 4. CAN YOU SEE? m a croscopic m i croscopic
    5. 5. CAN YOU SEE? m a croscopic m i croscopic
    6. 6. What is this stuff ? What is the Matter ?
    7. 7. Matter = things , ‘ stuff’ and… YOU
    8. 8. What is Matter ? What are YOU made of ?
    9. 9. Mobile Phone Model to represent the real thing =
    10. 10. Scientific Model = solid to represent the real thing
    11. 11. Scientific Model to represent the real thing = water molecule =
    12. 12. Matter can MOVE Brownian Motion How do we know? Here is the proof 
    13. 13. random movement of Liquid or Gas molecules Brownian Motion Matter can MOVE
    14. 14. Dead Cells Brownian Motion Matter can MOVE http://www-micro.msb.le.ac.uk/video/brownian.mov get pushed around by
    15. 15. Matter can MOVE + = Kinetic Energy
    16. 16. Kinetic Model of Matter Matter is made of moving molecules
    17. 17. Name 3 States of Matter
    18. 18. Name 3 States of Matter Gas Liquid Solid
    19. 19. Kinetic Model of Matter = Gas = flowing water molecule
    20. 20. Kinetic Model of Matter = Liquid = flowing water molecule
    21. 21. Kinetic Model of Matter = Solid = vibrating water molecule
    22. 22. Hold on a second!
    23. 23. Are you telling me that ICE CUBES are actually vibrating ?
    24. 24. !!! YES !!! Are you telling me that ICE CUBES are actually vibrating ?
    25. 25. WHY ?
    26. 26. CAN YOU SEE? m a croscopic m i croscopic
    27. 27. CAN YOU SEE? m a croscopic m i croscopic
    28. 28. m a croscopic Can you see ice cubes vibrate when they are becoming flowing water ?
    29. 29. m a croscopic Can you see ice cubes vibrate when they are becoming flowing water ? NO
    30. 30. vibrating m a croscopic m i croscopic flowing But are ice cubes actually vibrating when they are becoming flowing water ?
    31. 31. vibrating m a croscopic m i croscopic flowing But are ice cubes actually vibrating when they are becoming flowing water ? YES
    32. 32. During melting , ice cubes are vibrating to break the attrative force that holds water molecules together to become flowing water.
    33. 33. Part Two
    34. 34. Kinetic Model of Matter
    35. 35. Kinetic Model of Matter
    36. 36. Who is HOT ???
    37. 37. 100 °C 0 °C
    38. 38. Who is HOT ???
    39. 39. Higher Temperature
    40. 40. Kinetic Model of Matter ? Kinetic Energy ?
    41. 41. Kinetic Model of Matter
    42. 42. Kinetic Model of Matter ? Attractive Force ?
    43. 43. Kinetic Model of Matter
    44. 44. Kinetic Model of Matter ? Motion ?
    45. 45. Kinetic Model of Matter Vibrate Flow at fixed position Slow Fast all over the place
    46. 46. Kinetic Model of Matter ? Shape ?
    47. 47. Kinetic Model of Matter Fixed Changing with the shape of container
    48. 48. Kinetic Model of Matter ? Distance between Molecules ?
    49. 49. Kinetic Model of Matter
    50. 50. Kinetic Model of Matter ? Can be Compressed ?
    51. 51. Kinetic Model of Matter NO NO YES! ? Can be Compressed ?
    52. 52. Liquid Nitrogen Gas Nitrogen 25 ° C -72 ° C COMPRESS
    53. 54. Liquid Nitrogen Gas Nitrogen 25 ° C -72 ° C DECOMPRESS
    54. 56. LIVE
    55. 58. Hand burnt by Liquid Nitrogen
    56. 60. Large Volume Small Volume COMPRESS CO 2
    57. 61. Large Volume Small Volume DECOMPRESS CO 2
    58. 62. Large Volume Small Volume DECOMPRESS HOW? CO 2
    59. 63. Large Volume Small Volume DECOMPRESS
    60. 64. DECOMPRESS ? CO 2
    61. 65. DECOMPRESS ? <ul><li>Speed ? </li></ul><ul><li>Volume ? </li></ul>CO 2
    62. 66. LIVE +
    63. 67. DECOMPRESS ? <ul><li>Speed Faster </li></ul><ul><li>Volume Larger </li></ul>CO 2
    64. 68. Pressure Speed of molecular motion
    65. 69. http://eepybird.com/exp214.html You’ve seen nothing yet!
    66. 70. Homework Play Gas Law Program to find out the relationships between: Pressure Molecular Motion V.S Molecular Motion V.S Temperature
    67. 71. http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm Gas Law Program

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