Based on the Phase Diagram of a Pure Substance Given

question 11

Multiple Choice

Based on the phase diagram of a pure substance given below, which statement is true?

• A) The solid phase has a lower density than the liquid phase.
• B) The triple point is at a higher temperature than the normal melting point.
• C) The substance changes from a solid to a liquid as one follows the line from C to D.
• D) The substance changes from a liquid to a gas as one follows the line from C to D.
• E) Point B represents the critical temperature and pressure for the substance.

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