Modern Thermodynamics
- Chapter 1
29
Figure 1.7 Lennard-Jones "6-12" potential energy between two molecules as a function of the distance
between their centers. It is common to specify ε in units of K using the ratio (ε/kB) in which kB is the
Boltzmann constant. The assumed Lennard-Jones parameter values for the above curve are ε/kB= 197K
(which corresponds to εΝΑ=1.638kJ/mol) and σ=430pm. These values represent the approximate
interaction energy between CO2 molecules.
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