Problem: Sulfur can exist as a gas, a liquid, or as one of two solid states: rhombic and monoclinic. A phase diagram for sulfur is shown below: a. What is (are) the thermodynamically-stable phase(s) of sulfur at room temperature and pressure (i.e. 1.0 atm at 25°C)?     b. Which state of sulfur is more dense: rhombic, monoclinic, or liquid?

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Sulfur can exist as a gas, a liquid, or as one of two solid states: rhombic and monoclinic. A phase diagram for sulfur is shown below:

a. What is (are) the thermodynamically-stable phase(s) of sulfur at room temperature and pressure (i.e. 1.0 atm at 25°C)?

b. Which state of sulfur is more dense: rhombic, monoclinic, or liquid?

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Based on our data, we think this problem is relevant for Professor TBA's class at NYU.