Selected illustrative results for the primitive model

In this section, we present some results for the thermodynamic quantities for the 1-D model of particles interacting through the potential function (2.5.1) (Fig. 2.10d). We shall compare these results with results for a reference liquid which consists of hard rods HR). The interaction between the particles in the normal reference system is (Fig. 2.10a) 

We shall refer to the reference system of the HR system and the water-like system as the HB system. 

We start with the most unusual and well-known property of 

The molar volume is the average length per particle and is given by 

In Fig. 2.11, we show the temperature dependence of the average length per particle (L) /N as a function of temperature 

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