Why Does Sugar Dissolve Faster in Hot Tea Than in Iced Tea?

This effect of temperature on the solubility of solids is explained using Le Chatelier's Principle. The principle states that if stress, such as heat, is applied to an equilibrium, the system adjusts to minimize the effect of the stress. Therefore, since the breakdown of molecular bonds requires heat, an increase in temperature favors dissolution as the system attempts to remove the added heat.