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What is relative humidity in terms of moisture and temperature?
Wiki User
∙ 11y ago
relative humidity is the amount of moisture that air can hold in a certain temperature
Wiki User
∙ 11y ago
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What are the two things that increase humidity?
In terms of RELATIVE humidity, you can either add moisture to the air or lower the temperature.
What are two things that increases humidity?
In terms of RELATIVE humidity, you can either add moisture to the air or lower the temperature.
What terms indicates the moisture content of the atmosphere measured as a percentage of saturation?
relative humidity
What kind of conditions in terms of temperature and humidity are ideal for spray painting a wood material?
The conditions ideal for spray painting a wood material are a relative humidity of 55 percent and temperature of 20 degrees Celsius.
What unit of measurement measures humidity?
Water vapor in the air is absolute humidity. The ratio of the absolute humidity to the maximum absolute humidity for that temperature and pressure is called the "relative humidity." Absolute humidity is very frequently expressed in terms of grains per pound of air, ppm, or vapour pressure. Relative humidity is usually expressed as a percent.Relative humidity, expressed as a percentage from 0% to 100%, is the amount of moisture in air divided by the total possible amount of moisture in air. Unfortunately, the total possible amount changes when the temperature changes, so the relative humidity can change without adding or removing any water.Another measure is dew point, which is the temperature at which water would condense. It doesn't change with temperature.The lowest measured relative humidity in Phoenix, AZ, USA, is 2%--pretty dry. Sometimes the dew point is below 0 degrees, also pretty dry. (Celsius or Fahrenheit? Both!)
How to Calculate actual humidity from relative humidity?
One can calculate the absolute humidity (AH) from the relative humidity (r) using three equations: (1) the equation for mixing ratio, (2) an equation for relative humidity expressed in terms of mixing ratio, and (3) the Clausius-Clapeyron equation, which relates saturation vapor pressure to temperature. The result of combining the three equations is: AH = (1324 r/T) [exp {5417.75 (1/273 - 1/T)}] where AH is expressed in grams per cubic meter, T is temperature in Kelvin, r is relative humidity (range is 0 to 1), and the relation holds true for T>273. For T<273, replace 5417.75 with 6139.81.
Units for humidity?
Different types of humidity (specific, relative, and vapor pressure) are all measured with different units, although weathermen usually express the relative, which is measured as a percentage. For further help, I've attached a link in the related links below.
What is difference between fine coal moisture and inhereent moisture and free moisture?
Fine Coal Moisture: not familiar with this term. I assume it is the Total Moisture in the fine fraction of coal. Fine fraction or "fines" is sometimes defined as the -0.5 mm fraction. "Inherent Moisture" is a non-preferred term according to Australian Standard 2418-1995: Coal & Coke - Glossary of Terms. It is sometimes used to mean the moisture retained by a coal or coke sample, after it has attained equilibrium with the atmosphere to which it is exposed. "Inherent" is not a good word here because the atmosphere to which the sample is exposed is not normally controlled for temperature or humidity. Alternatively, "Inherent Moisture" is also used to mean "Equilibrium Moisture" = "Bed Moisture" = "In-situ Moisture", which is an ASTM test for moisture retained after the sample has attained equilibrium with an atmosphere of controlled humidity and temperature. These two usages of Inherent Moisture are not even approximately the same; the term is therefore ambiguous and should not be used. "Free Moisture" = "Surface Moisture" is the moisture that is lost by the coal or coke in attaining equilibrium with the air to which it is exposed (AS2418). This air would normally be at ambient temperature and humidity.
What is a measure of how much water vapor is in a given volume of air?
It is measured in terms of percentage of humidity. A device to measure humidity is called hygrometer. The relative humidity of air can be measured by dry and wet bulb method.
What is saturation and equilibrium capacity?
Although technically they are different situations, for most practical purposes these two terms cover the point at which a desiccant no longer adsorbs moisture. Saturation is when the desiccant is full and even if there were moisture molecules to pick up, the desiccant could not do it. Equilibrium capacity is when the desiccant has pulled so much moisture out of the air that the air retains a stronger hold on the moisture molecules than the desiccant can exert. At equilibrium capacity, adding more desiccant will not bring the Relative humidity any lower.
Describe the general weather conditions associated with a high pressure area in terms of temperature?
low density, high humidity
How is weather described?
Weather is described in terms of temperature, humidity, air pressure, and cloud types. It can also be described in terms of the ever changing winds in the atmosphere and the types of clouds.
