Avogadro's law
E168348
Avogadro's law is a fundamental principle of chemistry stating that equal volumes of gases, at the same temperature and pressure, contain equal numbers of molecules.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Avogadro's law canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T1463447 — 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: Avogadro's law Context triple: [Amedeo Avogadro, hasLawNamedAfter, Avogadro's law]
-
A.
Boyle's law
Boyle's law is a fundamental gas law in physics and chemistry stating that the pressure of a fixed amount of gas is inversely proportional to its volume at constant temperature.
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B.
ideal gas law
The ideal gas law is a fundamental equation in thermodynamics that relates the pressure, volume, temperature, and amount of an idealized gas, providing a simple model for gas behavior under many conditions.
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C.
Avogadro constant
The Avogadro constant is the fundamental physical constant that specifies the number of constituent particles, usually atoms or molecules, in one mole of a substance.
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D.
Amedeo Avogadro
Amedeo Avogadro was a 19th-century Italian scientist best known for formulating Avogadro's law, which laid the foundation for the concept of the mole and the Avogadro constant in chemistry.
-
E.
Boyle
Boyle is a surname of Irish origin most famously associated with the 17th-century natural philosopher and chemist Robert Boyle, a pioneer of modern experimental science.
- 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: Avogadro's law Target entity description: Avogadro's law is a fundamental principle of chemistry stating that equal volumes of gases, at the same temperature and pressure, contain equal numbers of molecules.
-
A.
Boyle's law
Boyle's law is a fundamental gas law in physics and chemistry stating that the pressure of a fixed amount of gas is inversely proportional to its volume at constant temperature.
-
B.
ideal gas law
The ideal gas law is a fundamental equation in thermodynamics that relates the pressure, volume, temperature, and amount of an idealized gas, providing a simple model for gas behavior under many conditions.
-
C.
Avogadro constant
The Avogadro constant is the fundamental physical constant that specifies the number of constituent particles, usually atoms or molecules, in one mole of a substance.
-
D.
Amedeo Avogadro
Amedeo Avogadro was a 19th-century Italian scientist best known for formulating Avogadro's law, which laid the foundation for the concept of the mole and the Avogadro constant in chemistry.
-
E.
Boyle
Boyle is a surname of Irish origin most famously associated with the 17th-century natural philosopher and chemist Robert Boyle, a pioneer of modern experimental science.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
gas law
ⓘ
physical law ⓘ principle of chemistry ⓘ |
| appliesTo | ideal gases ⓘ |
| assumes | gases behave ideally ⓘ |
| category | laws of thermodynamics and gases ⓘ |
| clarifiedBy | Stanislao Cannizzaro ⓘ |
| componentOf | ideal gas law ⓘ |
| consequence |
equal volumes of different ideal gases contain the same number of moles at same T and P
ⓘ
molar volume of an ideal gas at STP is approximately 22.4 liters per mole ⓘ |
| domain | macroscopic thermodynamic systems ⓘ |
| field |
chemistry
ⓘ
physical chemistry ⓘ thermodynamics ⓘ |
| historicalProposalYear | 1811 ⓘ |
| historicalProposedBy | Amedeo Avogadro ⓘ |
| holdsBestFor |
high-temperature gases
ⓘ
low-pressure gases ⓘ |
| implies | molar volume of an ideal gas is constant at given temperature and pressure ⓘ |
| mathematicalForm |
V = k n at constant T and P
ⓘ
V ∝ n at constant T and P ⓘ V1 / n1 = V2 / n2 at constant T and P ⓘ |
| namedAfter | Amedeo Avogadro ⓘ |
| predicts |
doubling the amount of gas doubles the volume at constant temperature and pressure
ⓘ
halving the amount of gas halves the volume at constant temperature and pressure ⓘ |
| relatedConcept |
Avogadro constant
ⓘ
Boyle's law ⓘ Charles's law ⓘ Gay-Lussac's law ⓘ ideal gas ⓘ mole ⓘ |
| relatesQuantity |
amount of substance
ⓘ
pressure ⓘ temperature ⓘ volume of a gas ⓘ |
| scale | molar scale ⓘ |
| statedAs | Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules ⓘ |
| status | empirical law ⓘ |
| taughtIn |
introductory chemistry courses
ⓘ
physical chemistry courses ⓘ |
| usedIn |
determination of molar mass of gases
ⓘ
kinetic theory of gases ⓘ stoichiometric gas calculations ⓘ |
| usedToDerive | ideal gas law ⓘ |
| validUnderCondition |
constant pressure
ⓘ
constant temperature ⓘ |
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: Avogadro's law Description of subject: Avogadro's law is a fundamental principle of chemistry stating that equal volumes of gases, at the same temperature and pressure, contain equal numbers of molecules.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.