1. Agenda Unit 3 Extra Credit Quiz WED 10/14 (short period)
Today: Intermolecular Forces, Properties of Liquids: finish summary for HW
Unit 5 Quest TUES 10/20

2. Intermolecular Forces
Forces of attraction between molecules
(dotted lines represents attraction between water molecules)

3. Stations You must get to all 4 stations
You must use your observations and your knowledge of intermolecular forces to come up with the definitions in the boxes

4. Pressure:
Atmospheric Pressure=pressure exerted by the air above a surface
Vapor Pressure=pressure exerted by the molecules at the surface of the liquid; (they want to escape to the gas phase)
VAPOR
ATMOSPHERIC

5. VAPOR
ATMOSPHERIC
Boiling point of a liquid: vapor pressure = atmospheric pressure

6. 1. What happens to the vapor pressure of a substance when the temperature increases? IT INCREASES

7. : VAPOR PRESSURE = ATMOSPHERIC PRESSURE =NORMAL BOILING POINT
- - - STANDARD ATMOSPHERIC PRESSURE also = 1 atm
: VAPOR PRESSURE = ATMOSPHERIC PRESSURE
=NORMAL BOILING POINT