How does the temperature affect sugar solubility?

The correct choice highlights a well-established principle in chemistry: higher temperatures generally increase the solubility of solids, including sugar. This occurs because heating a solution provides energy to the molecules, which enhances their movement and interactions. As the temperature rises, the kinetic energy of the water molecules also increases, allowing them to break apart the sugar molecules more efficiently and dissolve them.

In colder temperatures, the kinetic energy is lower, which results in a decreased ability of water to interact with and dissolve sugar. Thus, the solubility of sugar decreases as the temperature drops. This principle is applicable in various food service contexts, such as when preparing syrups or sweetening beverages, where the temperature may be intentionally raised to achieve the desired concentration without excess undissolved sugar.