Answer
The occupied volume grows and the density decreases as the translational motion of molecules increases. Therefore, the solid-state density of benzoic acid is higher than the liquid-state.
Work Step by Step
The average kinetic energy and speed of a substance's molecules increase as its temperature rises. At the melting point, the molecules typically have enough kinetic energy to break themselves from the solid's highly organized. The occupied volume grows as the translational motion of molecules increases.
