Which of the following best describes what happens to the substance between t4 and t5?
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Which of the following best describes what happens to the substance between t4 and t5?
(a) the molecules are leaving the liquid phase.
(b) the solid and liquid phases coexist in the equilibrium.
(c) the vapor pressure of the substance is decreasing.
(d) the average intermolecular distance is decreasing.
(e) the temperature of the substance is increasing.
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