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Relationship between pressure and entropy value

2015-09-04View Original

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Can someone explain why the higher the saturated vapor pressure, the lower the entropy value?
Reply #22015-09-04
What is your motivation for studying \"entropy values\"? In my opinion, you haven’t reached the stage of studying \"entropy values\" yet.
Reply #32015-09-04
The higher the pressure, the smaller the volume, and the molecular arrangement becomes more ordered, which results in a decrease in entropy. In fact, entropy can be used to indicate the degree of disorder in a substance; the more chaotic the arrangement of the molecules (the more intense the thermal motion), the higher the entropy value. dS = -dQ/dT
Reply #42015-09-04
Once you understand the physical meaning of entropy, it becomes clear. Entropy is a measure of the degree of disorder within a substance. S = lnΩ. As pressure increases, the internal disorder will decrease.
Reply #52015-11-05
Entropy is used to indicate the degree of disorder in a substance; the greater the pressure, the more tightly the gas molecules are arranged, and the lower the entropy value.
Reply #62016-01-19
Look what this friend says. . . It’s okay; one can learn it. That’s why I’m asking everyone for advice
Reply #72016-01-19
Let me explain it to you: Entropy is a measure of the degree of disorder in a system. When pressure increases, it means there is less \"space\" and stricter control, and as a result, \"disorder (entropy)\" decreases. The same is true for social systems; “high-pressure policies (stress)” reduce “**degree of freedom (entropy)**”. So: nature and society both follow the same laws; this is one of my Wiseboy worldviews.
Reply #82016-01-21
Welcome more people to participate, engage in joyful communication and sharing, and learn together while improving together

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