33 / 54

4-20

compressibility

URNurn:iso:std:iso:80000:-4:ed-2:en:item:4-20

https://metanorma.github.io/isq-smart/quantities/part-4/t4-20
urn:iso:std:iso:80000:-4:ed-2:en:item:4-20

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-4:ed-2:en:item:4-20

IEC

urn:iec:std:iec:80000-4:2019:::item:4-20

Designations

ENcompressibility

FRcoefficient de compressibilité volumique

Symbol

κ

Notation systems

Rendered

κ

AsciiMath

kappa

LaTeX

\kappa

Definition

negative relative change of volume $V$ (ISO 80000-3: Space and time) of an object under pressure $p$ (pressure) expressed by:

$κ = - \frac{1}{V} \frac{d V}{d p}$

opposé de la variation relative du volume $V$ (ISO 80000-3: Space and time) d'un objet sous une pression $p$ (pressure), exprimée par :

$κ = - \frac{1}{V} \frac{d V}{d p}$

Units

P a^{- 1}

per pascal

View related quantities →

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

metre second squared per kilogram

View related quantities →

Notes

Conditions should be specified (e.g. isentropic or isothermal process).

Broader concepts

◇ L M⁻¹ T² quantities

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:t4-20

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	4-20
skosxl:prefLabel	"compressibility"@en
skosxl:altLabel	"kappa"@en
skos:definition	negative relative change of volume stem:[V] (<<iso80000-3>>) of an object under pressure stem:[p] (<<t4-14.1>>) expresse…
skos:note	Conditions should be specified (e.g. isentropic or isothermal process). See also <<iso80000-5>>.
isq:hasUnit	Pa^(-1) (per pascal)kg^(-1)ms^2 (metre second squared per kilogram)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-4

Related Entities

isq:QuantityShape isq:part-4 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry