1. Chemistry Chapter 11 - Gases
South Lake High School
Ms. Sanders

2. Gases and Pressure Pressure – force per unit of area
Units of Pressure –
Pa – pascal
kPa – kilopascal
mmHg – millimeter of mercury
Torr – torr
atm - atmosphere

3. Gases and Pressure Conversions 1 torr = 1 mmHg 1 atm = 760 mmHg
1 atm = 760 torr
1 atm = kPa

4. Gases and Pressure Practice Conversions Page 365
1) Convert 1.75 atm to mmHg and kPa

5. Gases and Pressure Dalton’s Law of Partial Pressure
Example: P air = P N₂ + P O₂ + P CO₂ + P H₂O

6. Gas Laws
Boyle’ Law
Temperature is constant
↑P ↓V
↓P ↑V

7. Gas Laws
Boyle’s Law Practice page 370

8. Gas Laws Charles’ Law Pressure is constant ↑T ↑V ↓T ↓V
Temperature in Kelvins: K = °C

9. Gas Laws
Charles’ Law Practice Page 372

10. Gas Laws
Charles’ Law:
Solve for T₂

11. Gas Laws
Gay-Lussac’s Law
Volume is constant
↑T ↑P
↓T ↓P
K = °C

12. Gas Laws
Gay-Lussac’s Law Practice Page 374

13. Gas Laws
Combined Gas Law
The three gas laws combined

14. Gas Laws
Combined Gas Law Practice Page 375

15. Ideal Gas Law

16. Ideal Gas Law
Practice Page 385