Final answer:
Capacity in the context of drying agents refers to the ability of a substance to absorb moisture from its surroundings. Silica gel, calcium chloride, and activated alumina are examples of drying agents with high capacities for absorbing moisture.
Step-by-step explanation:
Capacity is the total amount of liquid an object can contain. In the context of drying agents, capacity refers to the ability of a substance to absorb moisture from its surroundings. It is a measure of how much water a drying agent can hold.
For example, silica gel is a commonly used drying agent that has a high capacity for absorbing moisture. It can absorb water vapor from the air, making it useful for keeping things dry and preventing moisture damage.
Other drying agents, such as calcium chloride and activated alumina, also have high capacities for absorbing moisture and are used in various applications, including drying air and gases, as well as in desiccant packs for packaging purposes.