1. How is it influenced by temperature?
Entropy
How is it influenced by temperature?

2. How does entropy vary with temperature?
Make a prediction
entropy
Why the vertical rise?
Now the measured entropies for water
temperature

3. Why does entropy vary with temperature?
gas
Increased thermal motion
-Vibrations in solids
-Translation, rotation, and vibrations in liquids and gases
Phase changes at vertical rises
liquid  gas
entropy
liquid
solid  liquid
solid
Tmp
Tbp
temperature

4. DSovaporation > DSofusion
Entropy and temperature
DSovaporation > DSofusion
Why?
Liquid to gas
DSovaporation
entropy
DSofusion
Solid to liquid
Tmp
Tbp
temperature

5. solid

6. liquid

7. liquid

8. gas