Formula
The formula for is the following:
Where:
- = equivalent temperature
- = Temperature of air at pressure
- = pressure at the point (in same units as )
- = standard reference pressure (1000 mbar or 100 kPa)
- = specific gas constant for air (287 J/(kg·K))
- = specific heat of dry air at constant pressure (1004 J/(kg·K))
- = latent heat of evaporation (2400 kJ/kg {at 25 °C} to 2600 kJ/kg {at −40 °C})
- = mixing ratio of water vapor mass per mass of dry air (g/Kg or in Kg/Kg.)
Read more about this topic: Equivalent Potential Temperature
Famous quotes containing the word formula:
“I take it that what all men are really after is some form or perhaps only some formula of peace.”
—Joseph Conrad (1857–1924)
“Beauty, like all other qualities presented to human experience, is relative; and the definition of it becomes unmeaning and useless in proportion to its abstractness. To define beauty not in the most abstract, but in the most concrete terms possible, not to find a universal formula for it, but the formula which expresses most adequately this or that special manifestation of it, is the aim of the true student of aesthetics.”
—Walter Pater (1839–1894)
“I feel like a white granular mass of amorphous crystals—my formula appears to be isomeric with Spasmotoxin. My aurochloride precipitates into beautiful prismatic needles. My Platinochloride develops octohedron crystals,—with a fine blue florescence. My physiological action is not indifferent. One millionth of a grain injected under the skin of a frog produced instantaneous death accompanied by an orange blossom odor.”
—Lafcadio Hearn (1850–1904)