Chemical Engineering Thermodynamics (MCQs)

If we increase the pressure on a substance (which is at its triple point), then the triple point _________?

  • A. Increases
  • B. Decreases
  • C. Remains unchanged
  • D. May increase or decrease ; depends on the substance
Answer: Option C.

For a triple point the degree of freedom is zero. So, we can say any parameter can’t change its state. It is a fixed state point.

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