Which of the following statements about the phase diagram of a substance is true

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Question: Which of the following statements about the phase diagram of a substance is true?

Options:

Correct Answer: The triple point is where all three phases coexist

Solution:

The triple point is the unique set of conditions at which all three phases (solid, liquid, gas) coexist in equilibrium.

Which of the following statements about the phase diagram of a substance is true?

Which of the following statements about the phase diagram of a substance is true?

Step 1: Understand what a phase diagram is. A phase diagram shows the different states (solid, liquid, gas) of a substance at various temperatures and pressures.
Step 2: Identify the phases of a substance. The three main phases are solid, liquid, and gas.
Step 3: Learn about the triple point. The triple point is a specific condition where all three phases can exist together at the same time.
Step 4: Recognize that at the triple point, the temperature and pressure are just right for solid, liquid, and gas to be in balance.
Step 5: Conclude that the statement about the triple point being the unique set of conditions for all three phases to coexist is true.

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