Upcoming SlideShare
×

# Unit 6 Power Point

526 views

Published on

0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

Views
Total views
526
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
5
0
Likes
0
Embeds 0
No embeds

No notes for slide

### Unit 6 Power Point

1. 1. Unit 6<br />Kinetic Theory of Gases<br />
2. 2. Kinetic Theory<br />3 Parts to Kinetic Theory<br />All particles are in constant random motion<br />
3. 3. Kinetic Theory<br />3 Parts to Kinetic Theory<br />All particles are in constant random motion<br />The motion of one particle is unaffected by the motion of other particles unless they collide.<br />
4. 4. Kinetic Theory<br />3 Parts to Kinetic Theory<br />All particles are in constant random motion<br />The motion of one particle is unaffected by the motion of other particles unless they collide.<br />Forces of attraction among particles in a gas can be ignored under ordinary conditions.<br />
5. 5. Kinetic Theory<br />The molecules move in straight lines and at constant velocity<br />They only change directions or speed when they collide with other molecules or the sides of the container<br />
6. 6. Boyle’s Law<br />As the volume of a gas decreases (Squeezing), the pressure increases.<br />The volume of gas is inversely proportional to the pressure applied. <br />Temperature and number of particles are held constant.<br />P1V1= P2V2<br />
7. 7.
8. 8.
9. 9.
10. 10.
11. 11. Charles’ Law<br />As the temperature of a gas increases, the volume increases.<br />The volume of a gas is directly proportional to the Kelvin temperature.<br />Pressure and number of particles are held constant.<br />V1/T1= V2/T2<br />
12. 12.
13. 13.
14. 14.
15. 15.
16. 16. Hot Air Balloons work on Charles Law<br />
17. 17. Hot Air Balloons work on Charles Law<br />
18. 18. Try It At Home!<br />Seal an empty water bottle <br />Throw into the freezer.<br />Wait 20 minutes<br />
19. 19. Try It At Home!<br />Seal an empty water bottle <br />Throw into the freezer.<br />Check it out after it gets cold!<br />Charles Law in effect<br />
20. 20. Why do you always launch balloons early in the morning?<br />
21. 21. Why do you always launch balloons early in the morning?<br />Early morning is cooler, so the temperature difference between the air in the balloon and the outside is greater.<br />Once up high, the air is cooler and you can stay up for a long time.<br />
22. 22. Guy-Lussacs’ Law<br />Guy-Lussacs’ Law. The number of particles of the substance are held constant.<br />P1/T1= P2/T2<br />
23. 23. Why is this a problem?<br />
24. 24. The heat will increase the pressure in the tank until it explodes<br />
25. 25. Try It At Home!<br />Seal an empty water bottle on a high mountain road.<br />Drive down to sea level<br />
26. 26. Try It At Home!<br />Seal an empty water bottle on a mountain road.<br />Check it out at sea level!<br />Guy-Lussac’s Law<br />
27. 27. Combined Gas Law<br />Combination of Boyle’s and Charles’ Law. The number of particles of the substance are held constant.<br />P1V1/T1 = P2V2/T2<br />
28. 28. Why are weather balloons not filled completely at launch?<br />
29. 29. Combined Gas Law<br />Ground: <br />T = 293 K<br />P = 1 Atm<br />V = 100 L<br />5,000 m: <br />T = 263 K<br />P = 0.5 Atm<br />V = ?<br />16,000 m <br />T = 213 K<br />P = 0.1 Atm<br />V = ?<br />P1V1/T1 = P2V2/T2<br />
30. 30. Combined Gas Law<br />Ground: <br />T = 293 K<br />P = 1 Atm<br />V = 100 L<br />5,000 m: <br />T = 263 K<br />P = 0.5 Atm<br />V = ?<br />16,000 m <br />T = 213 K<br />P = 0.1 Atm<br />V = ?<br />1.0atm*100L/293K = 0.5atm*V2/263K<br />P1V1/T1 = P2V2/T2<br />
31. 31. Combined Gas Law<br />Ground: <br />T = 293 K<br />P = 1 Atm<br />V = 100 L<br />5,000 m: <br />T = 263 K<br />P = 0.5 Atm<br />V = 179 L<br />16,000 m <br />T = 213 K<br />P = 0.1 Atm<br />V = ?<br />1.0atm*100L/293K = 0.5atm*V2/263K<br />V2 = 179 L<br />P1V1/T1 = P2V2/T2<br />
32. 32. Combined Gas Law<br />Ground: <br />T = 293 K<br />P = 1 Atm<br />V = 100 L<br />5,000 m: <br />T = 263 K<br />P = 0.5 Atm<br />V = 179 L<br />16,000 m <br />T = 203 K<br />P = 0.1 Atm<br />V = ?<br />1.0atm*100L/293K = 0.1atm*V2/203K<br />P1V1/T1 = P2V2/T2<br />
33. 33. Combined Gas Law<br />Ground: <br />T = 293 K<br />P = 1 Atm<br />V = 100 L<br />5,000 m: <br />T = 263 K<br />P = 0.5 Atm<br />V = 179 L<br />16,000 m <br />T = 203 K<br />P = 0.1 Atm<br />V = 693 L<br />1.0atm*100L/293K = 0.1atm*V2/203K<br />V2 = 693 L<br />P1V1/T1 = P2V2/T2<br />
34. 34. Why are weather balloons not filled completely at launch?<br />
35. 35. Why are weather balloons not filled completely at launch?<br />The Atmosphere is much thinner, so the balloon expands<br />
36. 36. Try It At Home!<br />Seal an empty water bottle on a mountain road.<br />Check it out at sea level!<br />Guy-Lussac’s Law<br />