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Bound Moisture. This Is Water Retained So That It Exerts A Vapour Pressure Less Than That

The moisture content of a material can be expressed as either a percentage of the mass of dry material or on a wet basis. There are two types of moisture: bound moisture, which is water retained in small spaces like capillaries or absorbed on surfaces where it exerts less vapor pressure; and free moisture, which is water in excess of equilibrium moisture content and can be removed through vaporization by hot gases, with the ability to remove it determined by the temperature and humidity of the gases.

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273 views1 page

Bound Moisture. This Is Water Retained So That It Exerts A Vapour Pressure Less Than That

The moisture content of a material can be expressed as either a percentage of the mass of dry material or on a wet basis. There are two types of moisture: bound moisture, which is water retained in small spaces like capillaries or absorbed on surfaces where it exerts less vapor pressure; and free moisture, which is water in excess of equilibrium moisture content and can be removed through vaporization by hot gases, with the ability to remove it determined by the temperature and humidity of the gases.

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jokish
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Moisture content:

The moisture content of a material is usually expressed in terms of its water content
as a percentage of the mass of the dry material, though moisture content is sometimes
expressed on a wet basis.

Bound moisture. This is water retained so that it exerts a vapour pressure less than that
of free water at the same temperature. Such water may be retained in small capillaries,
adsorbed on surfaces, or as a solution in cell walls.
Free moisture. This is water which is in excess of the equilibrium moisture content.
The water removed by vaporisation is generally carried away by air or hot gases,
and the ability of these gases to pick up the water is determined by their temperature
and humidity.

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