4) 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 (kJ/mol) a) What type of phase transition is 600 this? Why? 400 200 P (bar) 4 10 b) From the figure, estimate the difference in volume AV between the two phases.
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