An unknown molecule (molecule A), in its solid phase, is found to have a density of . Eight grams of this molecule is added to a cubic container with length of . The container is then heated until all of the solid has melted. What can you conclude from the given information?

Which of the following is true regarding the liquid phase?

I. Liquids have lower entropy than gases

II. Compared to solids, more energy is required to separate liquid molecules

III. Liquids have higher intermolecular forces than gases

Which of the following are responsible for the high boiling point of water, compared to molecules of similar size?