Laplace pressure

E528107
physical quantity surface-tension-related phenomenon thermodynamic concept

Laplace pressure is the pressure difference across a curved interface, such as a bubble or droplet surface, arising from surface tension and the interface’s curvature.

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Statements (49)

Predicate Object
instanceOf physical quantity ⓘ
surface-tension-related phenomenon ⓘ
thermodynamic concept ⓘ
alsoKnownAs capillary pressure ⓘ
appliesTo quasi-static interfaces ⓘ
static interfaces ⓘ
assumes mechanical equilibrium across the interface ⓘ
dependsOn curvature of the interface ⓘ
surface tension ⓘ
governs pressure inside bubbles ⓘ
pressure inside capillaries ⓘ
pressure inside droplets ⓘ
hasDefinition pressure difference across a curved interface arising from surface tension and curvature ⓘ
hasFormula ΔP = 2γ/R for a spherical interface ⓘ
ΔP = γ (1/R1 + 1/R2) ⓘ
hasSymbol ΔP ⓘ
hasUnit N/m² ⓘ
pascal ⓘ
increasesWith increasing curvature magnitude ⓘ
increasing surface tension ⓘ
isDescribedBy Young–Laplace equation NERFINISHED ⓘ
isHigherIn smaller bubbles ⓘ
smaller droplets ⓘ
isInverselyProportionalTo radius of curvature for spherical interfaces ⓘ
isNamedAfter Pierre-Simon Laplace NERFINISHED ⓘ
isProportionalTo mean curvature of the interface ⓘ
surface tension γ ⓘ
isRelevantTo aerosol physics ⓘ
biological membranes curvature ⓘ
blood capillary menisci ⓘ
boiling ⓘ
capillary rise ⓘ
cavitation ⓘ
cloud droplet formation ⓘ
droplet microreactors ⓘ
emulsion stability ⓘ
foam stability ⓘ
inkjet printing ⓘ
lung alveoli mechanics ⓘ
microfluidics ⓘ
nucleation of bubbles ⓘ
nucleation of droplets ⓘ
porous media flow ⓘ
soap bubbles ⓘ
stability of liquid films ⓘ
wetting phenomena ⓘ
occursAt liquid–gas interface ⓘ
liquid–liquid interface ⓘ
solid–liquid interface ⓘ

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Tolman length in thermodynamics of curved interfaces → relatedTo → Laplace pressure ⓘ
subject surface form: Tolman length