Laplace pressure
E528107
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Laplace pressure canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5538005 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Laplace pressure Context triple: [Tolman length, relatedTo, Laplace pressure]
-
A.
Pascal's law
Pascal's law is a fundamental principle of fluid mechanics stating that pressure applied to an enclosed fluid is transmitted undiminished in all directions throughout the fluid and to the walls of its container.
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B.
Laplace equation
The Laplace equation is a fundamental second-order partial differential equation widely used in physics and engineering to describe steady-state phenomena such as electrostatics, gravitation, and heat conduction.
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C.
Clausius–Clapeyron relation
The Clausius–Clapeyron relation is a fundamental thermodynamic equation that describes how the pressure and temperature of a phase transition, such as boiling or condensation, are related.
-
D.
Kapitza resistance
Kapitza resistance is the thermal boundary resistance that occurs at the interface between a solid and liquid helium, causing a temperature discontinuity when heat flows across the boundary.
-
E.
Saffman–Taylor instability
The Saffman–Taylor instability is a fluid dynamics phenomenon in which a less viscous fluid penetrating a more viscous one in a confined geometry leads to finger-like interfacial patterns, often called viscous fingering.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Laplace pressure Target entity description: 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.
-
A.
Pascal's law
Pascal's law is a fundamental principle of fluid mechanics stating that pressure applied to an enclosed fluid is transmitted undiminished in all directions throughout the fluid and to the walls of its container.
-
B.
Laplace equation
The Laplace equation is a fundamental second-order partial differential equation widely used in physics and engineering to describe steady-state phenomena such as electrostatics, gravitation, and heat conduction.
-
C.
Clausius–Clapeyron relation
The Clausius–Clapeyron relation is a fundamental thermodynamic equation that describes how the pressure and temperature of a phase transition, such as boiling or condensation, are related.
-
D.
Kapitza resistance
Kapitza resistance is the thermal boundary resistance that occurs at the interface between a solid and liquid helium, causing a temperature discontinuity when heat flows across the boundary.
-
E.
Saffman–Taylor instability
The Saffman–Taylor instability is a fluid dynamics phenomenon in which a less viscous fluid penetrating a more viscous one in a confined geometry leads to finger-like interfacial patterns, often called viscous fingering.
- F. None of above. chosen
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 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Laplace pressure Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Tolman length