Final answer:
The average time for a tablet to dissolve in a reaction generally decreases as the temperature increases, due to increased kinetic energy and collision rate of the solvent molecules.
Step-by-step explanation:
As the temperature of a reaction increases, the rate of dissolution typically increases. This is due to the fact that heating up a solvent provides the molecules more kinetic energy, leading to more frequent and forceful collisions between the solvent molecules and the solute.
The average time for the tablet to dissolve generally decreases since the dissolving process is accelerated by the increased energy and collision rate. An example of this principle is that sugar dissolves quicker in hot water than in cold water. However, it's important to keep in mind that the exact effect of temperature on solubility varies among different substances, as shown by their unique solubility curves.