1. Boltzmann’s Approach to Entropy

4. Entropy vs. Temperature
Copper Metal
Temperature [K]
Entropy [Joule/K mol]
273
31.0
295
32.9
298
33.2

5. Entropy and Phase Type Sodium (Na) Water Graphite 51.4 69.9 5.7 153.6
188.7
158.0
Solid
Liquid

6. Entropy and Atom Size Li Na K Rb Cs 152 186 227 248 265 29.1 51.4 64.7
69.5
85.2
Radius [pm]
Entropy [J/K mol] HF
HCl
HBr HI
173.7
186.8
198.6
206.3
Entropy [J/K mol]

7. Entropy and Molecular ComplexityNO
NO2
N2O4
211
246
304
Entropy [J/K mol]
CH4
C2H6
C3H8
C4H10
186
230
270
310
Entropy [J/K mol]