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Namespace Prefixes

PrefixIRI
n2http://qudt.org/vocab/quantitykind/
dctermshttp://purl.org/dc/terms/
n4http://qudt.org/vocab/unit/
n3http://qudt.org/schema/qudt/
n8http://qudt.org/vocab/dimensionvector/
skoshttp://www.w3.org/2004/02/skos/core#
rdfshttp://www.w3.org/2000/01/rdf-schema#
n7http://qudt.org/2.1/vocab/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
xsdhhttp://www.w3.org/2001/XMLSchema#

Statements

Subject Item
n2:AbsoluteHumidity
rdf:type
n3:QuantityKind
rdfs:label
Absolute Humidity
rdfs:isDefinedBy
n7:quantitykind
rdfs:seeAlso
n2:RelativeHumidity
skos:broader
n2:Density
dcterms:description
"Absolute Humidity" is an amount of water vapor, usually discussed per unit volume. Absolute humidity in air ranges from zero to roughly 30 grams per cubic meter when the air is saturated at \(30 ^\circ C\). The absolute humidity changes as air temperature or pressure changes. This is very inconvenient for chemical engineering calculations, e.g. for clothes dryers, where temperature can vary considerably. As a result, absolute humidity is generally defined in chemical engineering as mass of water vapor per unit mass of dry air, also known as the mass mixing ratio, which is much more rigorous for heat and mass balance calculations. Mass of water per unit volume as in the equation above would then be defined as volumetric humidity. Because of the potential confusion.
n3:applicableUnit
n4:LB-PER-FT3 n4:TON_LONG-PER-YD3 n4:OZ-PER-GAL n4:MilliGM-PER-DeciL n4:SLUG-PER-FT3 n4:PlanckDensity n4:GRAIN-PER-GAL n4:LB-PER-YD3 n4:KiloGM-PER-M3 n4:LB-PER-IN3 n4:LB-PER-M3 n4:TON_SHORT-PER-YD3 n4:LB-PER-GAL_US n4:OZ-PER-IN3 n4:LB-PER-GAL n4:LB-PER-GAL_UK
n3:hasDimensionVector
n8:A0E0L-3I0M1H0T0D0
n3:informativeReference
http://en.wikipedia.org/wiki/Humidity#Absolute_humidity http://en.wikipedia.org/wiki/Humidity
n3:isoNormativeReference
http://www.iso.org/iso/catalogue_detail?csnumber=31890
n3:latexDefinition
\(AH = \frac{\mathcal{M}_\omega}{\vee_{net}}\), where \(\mathcal{M}_\omega\) is the mass of water vapor per unit volume of total air and \(\vee_{net}\) is water vapor mixture.
n3:symbol
AH