chemistry 1010 water. bonding forces - attractive forces outside and between molecules from yahoo...
Post on 20-Dec-2015
221 views
TRANSCRIPT
Chemistry 1010
Water
Solid - Strong attractive forces
Liquid - varied attractive forces depending on compound
Gas - No real attractive forces
From Yahoo Images
Hydrogen Bond
Attraction between molecules that have a Hydrogen connected to a F, O or N
Very strong attractive force – breaks pipes in the winter
Responsible for Surface Tension
HO
H
H O
H
HO
HH O
H
HO
H
-++
++
--
+ +H
OH
Surface Tension
Dipole Force
Attraction due to different electronegativities
From Yahoo Images
H Cl+ - +-
+-+-+ - +-+-
+ -+ -
Si O Si O+ -
N HHH
..-
++
+
Boiling Point
The temperature at which a
liquids vapor pressure is equal to the atmospheric
pressure
Vapor Pressure
The partial pressure a gas exerts when in equilibrium with a liquid
How Does an Aerosol Can Work?
How Does a Pressure Cooker Work?
Heat and Matter
• Heat is used by matter to either increase its temperature change state
• While changing state, the temperature of a substance remains constant
Heating Curve for Water
How Does Changing States Make Hurricanes Form?
• Ice crystal nucleation starts at the top of the storm where temperature is lowest
• Because the conversion of water to ice gives off energy, it gets warmer at the top
• This heat causes the air to expand which causes wind to rise
• This rising wind increases and intensifies as a hurricane grows
Drawing Organic Molecules
Draw Hexane C6H14
What do all those lines mean anyway????