We're being asked to determine which among the given statements is true.
Recall that a phase diagram shows the transition of matter between solid, liquid, and gas phases as temperature and pressure changes.
In a phase diagram, the different phases can be identified by their location:
• Solid: can be found at high pressure and low temperature
• Liquid: can be found between the solid and gas regions
• Gas: can be found at low pressure and high temperature
Which of the following statements is true?
A. The triple point of a substance increases when the pressure increases.
B. The critical point of a substance decreases when the temperature increases.
C. Both the triple point and the critical point of a substance increase with a decrease in temperature.
D. Both the triple point and the critical point of a substance are dependent on the substance only, but not on temperature or pressure.
E. None of the above are true.
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Phase Diagram concept. You can view video lessons to learn Phase Diagram. Or if you need more Phase Diagram practice, you can also practice Phase Diagram practice problems.
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