Gas laws

1,042 views

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,042
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
69
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Gas laws

  1. 1. Gas Laws
  2. 2. First, Definitions <ul><li>Directly proportional </li></ul><ul><ul><li>both variables will either increase or decrease together </li></ul></ul><ul><li>Inversely proportional </li></ul><ul><ul><li>one variable will increase and the other variable will decrease </li></ul></ul>Do you have these definitions on your unit plan?
  3. 3. Temperature held constant? <ul><li>What happens if the temperature is held constant? </li></ul>As the volume decreases, what happens to the pressure? It increases Directly or Inversely Proportional? Inversely
  4. 4. Pressure held constant? <ul><li>What happens when the pressure is held constant? </li></ul>As the volume decreases, what happens to the temperature? It decreases Directly or Inversely Proportional? Directly
  5. 5. Volume held constant? <ul><li>What happens when the volume is held constant? </li></ul>As the temperature increases, what happens to the pressure? It increases Directly or Inversely Proportional? Directly
  6. 6. Boyle’s Law <ul><li>Robert Boyle </li></ul><ul><ul><li>Studied relationship between pressure and volume when temperature was constant </li></ul></ul><ul><ul><li>Determined </li></ul></ul><ul><ul><li>they were </li></ul></ul><ul><ul><li>inversely </li></ul></ul><ul><ul><li>proportional </li></ul></ul>
  7. 7. Charles’ Law <ul><li>Jacques Charles </li></ul><ul><ul><li>Studied relationship between volume and temperature when pressure is held constant </li></ul></ul><ul><ul><li>Determined they were directly proportional </li></ul></ul>
  8. 8. Gay-Lussac’s Law <ul><li>Joseph Gay-Lussac </li></ul><ul><ul><li>Studied relationship between pressure and temperature when volume is held constant </li></ul></ul><ul><ul><li>Determined </li></ul></ul><ul><ul><li>they were </li></ul></ul><ul><ul><li>directly </li></ul></ul><ul><ul><li>proportional </li></ul></ul>
  9. 9. Ideal vs. Real Gas <ul><li>Ideal gases are gases whose particles take up no space and have no intermolecular attractive forces </li></ul><ul><li>Can you give an example of an ideal gas? </li></ul><ul><li>Probably not….they do not exist in the real world! </li></ul><ul><li>Expressed by the question PV = nRT </li></ul>Do you have these definitions on your unit plan?
  10. 10. Ideal vs. Real Gas <ul><li>Real gases are gases whose particles take up space and have intermolecular attractive forces </li></ul>Do you have these definitions on your unit plan?

×