Molten State
* Definition: The molten state refers to when an ionic compound is heated to a temperature where it transitions from a solid to a liquid. This is also commonly called the "liquid state."
* Key Characteristics:
* Free Ions: In the molten state, the strong electrostatic forces holding the ions in a rigid lattice structure are overcome by the increased kinetic energy of the ions. The ions are now free to move around.
* Conductivity: Molten ionic compounds conduct electricity. This is because the freely moving ions can carry electrical charge.
* No Definite Shape: Like other liquids, molten ionic compounds take the shape of their container.
Fused State
* Definition: The term "fused" is often used synonymously with "molten" to describe the liquid state of an ionic compound. However, "fused" can sometimes imply a specific process of melting two or more substances together, often at high temperatures.
* Example: In the context of glassmaking, "fused" might refer to the process where silica sand (SiO2) is melted with other ingredients like sodium carbonate (Na2CO3) to form a glass mixture.
Key Differences
* Melting: "Molten" generally refers to the simple melting of a substance into a liquid state.
* Fusion: "Fused" can refer to melting, but it often implies a specific process where multiple substances are melted together to create a new substance.
In Summary:
Both "molten" and "fused" describe the liquid state of an ionic compound. However, "fused" often has a slightly different meaning, implying a specific process involving the combination of multiple substances.
