Answer
When benzoic acid is in liquid form, the average distance between molecules is greater.
Work Step by Step
The density of benzoic acid in the liquid state (1.08g/$cm^{3}$) is lower than its density in the solid state (1.266g/$cm^{3}$). Density is the ratio of the mass of a substance to the volume it occupies. The mass will be the same in different phases for the same substance. That is why the lower the density, the larger the volume. The larger the volume, the greater the distance between the molecules.
