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9-19

partial pressure

URNurn:iso:std:iso:80000:-9:ed-2:en:item:9-19

https://metanorma.github.io/isq-smart/quantities/part-9/t9-19
urn:iso:std:iso:80000:-9:ed-2:en:item:9-19

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-9:ed-2:en:item:9-19

IEC

urn:iec:std:iec:80000-9:2019:::item:9-19

Designations

ENpartial pressure

FRpression partielle

Symbol

p_{X}

Notation systems

Rendered

p_{X}

AsciiMath

p_"X"

LaTeX

p_{\text{X}}

Definition

for substance $X$ in a gaseous mixture, product of amount-of-substance fraction $y_{X}$ of substance $X$ (amount-of-substance fraction) and total pressure $p$ (ISO 80000-4: Mechanics):

p_{X} = y_{X} p

pour le constituant $X$ dans un mélange gazeux, produit de la fraction de quantité de matière $y_{X}$ (amount-of-substance fraction) du constituant $X$ et de la pression $p$ (ISO 80000-4: Mechanics) totale:

p_{X} = y_{X} p

Units

P a

pascal

View related quantities →

k g \cdot m^{- 1} \cdot s^{- 2}

kilogram per metre second squared

View related quantities →

Referenced by

equilibrium constant <pressure basis>

Concept HierarchyPendrill (2024)

L⁻¹ M T⁻²pressure-type quantitiesLevel 0 · Kind

Broader concepts

◇ pressure-type quantities

Characterizes

● substance

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t9-19

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	9-19
skosxl:prefLabel	"partial pressure"@en
skosxl:altLabel	"p_"X""@en
skos:definition	for substance stem:[X] in a gaseous mixture, product of amount-of-substance fraction stem:[y_"X"] of substance stem:["X"…
isq:hasUnit	Pa (pascal)kgm^(-1)s^(-2) (kilogram per metre second squared)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-9

Related Entities

isq:QuantityShape isq:part-9 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry