1. How does the Gibbs energy change as the pressure is increased? Recall that dG = VmdP 2. Sketch a plot of the Gibbs energy vs. the pressure for liquid and solid water. The point where the lines intersect represents a phase transition. (Hint: consider how the molar volume of ice relates to the molar volume of water).

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It may be helpful to revisit the phase diagram for water in this section:
https://serc.carleton.edu/details/images/10201.html
1. How does the Gibbs energy change as the pressure is increased? Recall that dG = Vmdp
2. Sketch a plot of the Gibbs energy vs. the pressure for liquid and solid water. The point where the
lines intersect represents a phase transition. (Hint: consider how the molar volume of ice relates to
the molar volume of water).
AG
P
3. The Gibbs energy of a pure substance is identical to another thermodynamic quantity: the chemical
potential, μ. How does the chemical potential of liquid water relate to the chemical potential of
solid ice at standard pressure (1 bar)? How does this change at high pressure?
Transcribed Image Text:It may be helpful to revisit the phase diagram for water in this section: https://serc.carleton.edu/details/images/10201.html 1. How does the Gibbs energy change as the pressure is increased? Recall that dG = Vmdp 2. Sketch a plot of the Gibbs energy vs. the pressure for liquid and solid water. The point where the lines intersect represents a phase transition. (Hint: consider how the molar volume of ice relates to the molar volume of water). AG P 3. The Gibbs energy of a pure substance is identical to another thermodynamic quantity: the chemical potential, μ. How does the chemical potential of liquid water relate to the chemical potential of solid ice at standard pressure (1 bar)? How does this change at high pressure?
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