Physics 9702 · AS & A Level · Density and pressure

Density and pressure — practice question

The diagram depicts an ice cube floating in water. Both the ice cube and the water are at $0^\circ\text{C}$. Which statement gives the correct comparison between the molecular properties of the ice and the water?

  • AThe mean inter-molecular potential energies are the same for both the ice molecules and the water molecules.
  • BThe mean inter-molecular separations are the same for both the ice and the water.
  • CThe mean kinetic energies are the same for both the ice molecules and the water molecules.
  • DThe mean total energies are the same for both the ice molecules and the water molecules.

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