A graphical summary of the Lennard-Jones potential, shown that strong molecular field interaction is represented by the distance of separation location at the bottom of the well. [4] |

**Lennard-Jones potential**is a type of chemical potential that models the attraction and repulsion behaviors between pairs of neutral atoms or molecules, as defined by the following equation:

where, for a molecular system,

*ε*is the depth of the potential well,

*σ*is the finite distance at which the inter-particle potential is zero and

*r*is the distance between the particles.

The Lennard-Jones potential was introduced in 1924 by English mathematical physicist

__John Lennard-Jones__, as derived in his two-part article “On the Determination of Molecular Fields”. [1]

Human thermodynamics

In recent years, a few have begun to independently use the Lennard-Jones potential model to study and model human interactions, viewing people either as particles (human particles) or molecules (human molecules).

In 1988, Venezuelan-born English chemical engineering thermodynamicist Erich Muller employed the Lennard-Jones potential model in his applied human thermodynamics article “Human Societies: A Curious Application of Thermodynamics”, wherein he introduced the concept of an ‘interhuman potential’, modeling pairs of humans interacting socially ‘similar to that of insignificant molecules’, discussing their interactions in thermodynamic terms. [2]

In 2011, independent of Muller, Iranian-born American chemical engineer Mohsen Mohsen-Nia, and his associates Iranians human scientist

__F. Arfaei__, thermodynamicist

__H. Amiri__, and computer engineer

__A. Mohsen Nia__, wherein they present the results of a small relationship study, of different pairings of male and female co-workers, and discuss the results in energetic terms and attempt to explain interhuman

__relationship potential__modeled on the Lennard–Jones potential. [3]

References

1. (a) Lennard-Jones, J. E. (1924), "On the Determination of Molecular Fields: I: From the Variation of the Viscosity of a Gas with Temperature " (abs),

*Proc. R. Soc. Lond. A*106 (738): 441–462.

(b) Lennard-Jones, J. E. (1924), "On the Determination of Molecular Fields: II: From the Equation of State of a Gas" (abs),

*Proc. R. Soc. Lond. A*106 (738): 463–477.

(c) John Lennard-Jones – Wikipedia.

2. (a) Müller, Erich. A. (1998). “Human Societies: a Curious Application of Thermodynamics" (scan) (abstract)

*Chemical Engineering Education,*Vol. 1, No. 3, Summer.

(b) Thims, Libb. (2007).

*Human Chemistry (Volume Two)*, (preview), (Section: "Müller dispersion forces", pgs. 629-638). Morrisville, NC: LuLu.

3. Mohsen-Nia, Mohsen, Arfaei, F., Amiri, H., and Mohsen Nia, A. (2011). “A Thermodynamic Methodology for Evaluating Friendship Relations Stability”,

*Journal of Human Thermodynamics*, 7(2): 5-14, (Beta Review), Dec.

4. Lennard-Jones potential – ChemWiki.UCDavis.edu.

External links

● Lennard-Jones potential – Wikipedia.