Final answer:
Latent heat transfer causes a change in the air's moisture content without a change in dry-bulb temperature.
Step-by-step explanation:
When convection is accompanied by a phase change, it can cause a change in the air's moisture content with no change in the dry-bulb temperature. This type of heat transfer is known as latent heat transfer. Latent heat transfer occurs when a substance changes phase, such as when water evaporates into water vapor
The heat of freezing is the amount of thermal energy given off as a liquid freezes, and the heat of vaporization is the amount of thermal energy that must be added to change a liquid to a gas.
The transitions between a material's solid, liquid and gaseous phases involve large amounts of energy. The energy required for the transition is known as latent heat transfer. Recently, alternative energy researchers have been looking at ways that this latent heat transfer can be used to store energy until needed.