The main difference between crystalline solids and amorphous solids is that crystalline substances have characteristic geometry while amorphous solids do not. In other words, crystalline solids have a definite and orderly shape and amorphous solids do not.Continue Reading
While crystalline solids have a sharp melting point, amorphous solids are softened and melted over an unspecific range of temperatures. For example, glass is gradually softened and melted without undergoing an abrupt change to the liquid state. During the process of crystallization, amorphous solids experience a smooth cooling curve with a continuous drop in temperature. When crystalline substances undergo the crystallization process, they experience two breaks in their cooling curve. The two breaks indicate a period of a constant temperature instead of a continuous decrease in temperature.
The structure of a crystalline solid is much more rigid than the structure of an amorphous solid. Amorphous solids are irregularly broken while crystalline solids cleave along definite planes.
Another difference between these two types of solids is crystalline solids are anisotrophic and amorphous solids are isotrophic. Isotrophic means the solid's properties are independent of the direction in which they are being measured. Anisotrophic means the solid's properties are in different directions. Cellophane is an example of an amorphous solid. Copper is a common crystalline solid.Learn more about Solutions & Mixtures
Garnets, gold and graphite are all examples of crystalline solids. These items are all defined as crystalline solids by a similar molecular structure characterized by a well-defined, regular arrangement of identical unit cells.Full Answer >
An acidic solution is an aqueous solution that has a pH less than 7. Aqueous solutions are liquid mixtures made up of any chemical dissolved in water. The reason why the solution must contain water is that pH is a measure of the number of ions formed in water.Full Answer >
Barium chloride is soluble in water. At room temperature, it is 26.4 percent soluble, and a solution between the two contains up to 26.4 percent barium chloride. It is insoluble in ethanol.Full Answer >
The solubility of sugar, or sucrose, in water varies with temperature, ranging from 179 grams per 100 milliliters at 20 degrees Celsius to 487 grams per 100 milliliters at 100 degrees Celsius. As temperatures increases, the solubility also increases.Full Answer >