Condensation Evaporation Chart
However we can relate evaporation and condensation rates to weather variables we can measure easily.
Condensation evaporation chart. Evaporation is the change of a liquid to a gas. Definitions of evaporation evapotranspiration condensation and precipitation and how these processes relate to saturation water vapor pressure curve. Evaporation can occur all the time in all surfaces and at all places whereas condensation only takes place at carbon particles hygroscopic nuclei pollen grains and on salts etc. Mechanisms that result in warm and cold cloud formation.
In order for a liquid molecule to escape into the gas state the molecule must have enough kinetic energy to overcome the intermolecular attractive forces in the liquid. Since we know that the condensation rate is controlled by the amount of water vapor present and we use dew points to assess the amount of water vapor present it stands to reason that condensation rates are connected to dew points. The dew point defines when moisture will begin to condense on building. Liquid molecules that have this certain threshold kinetic energy.
The microscopic view of condensation. When a gas is cooled sufficiently or in many cases when the pressure on the gas is increased sufficiently the. Evaporation a and condensation b. Moisture in the atmosphere.
Evaporation and condensation are amongst the most important industrial processes which are used primarily in chemical technology as well as other areas of contemporary technology and they have huge practical significance just to mention perspective applications in removal of large heat fluxes in electronics and power engineering. The presence of condensation nuclei are critical for the formation of clouds. Processes that form precipitation and distribution of precipitation patterns. Conversion of one phase into another may proceed equally on the.
In addition to providing a psychometric chart this article includes dew point calculation formulas and references to dew point and psychometric chart calculations research and psychometric chart preparation or interpretation. Microscopic view after condensation. Indeed higher dew points yield higher condensation rates. Condensation is the change from a vapor to a condensed state solid or liquid.
Recall that a given liquid sample will have molecules with a wide range of kinetic energies.