5) Consider a substance that undergoes a phase transition at To=300K and pressure Po=5bar. The Gibbs free energy per mole at constant pressure and temperature near the transition is shown below. G(4) = Go +z ag² +b4*. +50 a) Given c=0, find the o which minimizes the free energy. b) Use a = ao (T – Tc), where a, and b are constants. Give the scaling exponent B for the order parameter o near Tc, ie ø ~ (T – Tc)P.
5) Consider a substance that undergoes a phase transition at To=300K and pressure Po=5bar. The Gibbs free energy per mole at constant pressure and temperature near the transition is shown below. G(4) = Go +z ag² +b4*. +50 a) Given c=0, find the o which minimizes the free energy. b) Use a = ao (T – Tc), where a, and b are constants. Give the scaling exponent B for the order parameter o near Tc, ie ø ~ (T – Tc)P.
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Transcribed Image Text:5) Consider a substance that undergoes a phase transition at To=300K and pressure Po=5bar.
The Gibbs free energy per mole at constant pressure and temperature near the transition is
shown below.
G(4) = Go +z ag² +b4*.
+50
a)
Given c=0, find the o which minimizes the free energy.
b)
Use a = ao (T – Tc), where a, and b are constants. Give the scaling exponent B
for the order parameter o near Tc, ie ø ~ (T – Tc)P.
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