* Sulfur's Phase Changes: Sulfur undergoes several phase changes as temperature increases:
* Rhombic Sulfur (below 95.3°C): The most stable form at room temperature.
* Monoclinic Sulfur (95.3°C to 119°C): A different crystalline structure.
* Liquid Sulfur (above 119°C): Melts and becomes a viscous liquid.
* Gaseous Sulfur (above 444.6°C): Vaporizes.
* 115°C is Within the Liquid Phase: At 115°C, sulfur is still in its liquid state. It doesn't transform into a new chemical compound at this temperature.
Key Point: While sulfur's physical state changes (solid to liquid) at 115°C, its chemical composition remains the same (S8 molecules).